diff --git a/doc/changes.rst b/doc/changes.rst
index ecd868d..400976d 100644
--- a/doc/changes.rst
+++ b/doc/changes.rst
@@ -7,8 +7,11 @@ Change Log
 
 * Remove support for :command:`desiInstall` in environments other than
   NERSC (PR `#101`_).
+* Try as best as possible that Python executable scripts are installed with
+  an explicit desiconda version (PR `#105`_).
 
 .. _`#101`: https://github.com/desihub/desiutil/pull/101
+.. _`#105`: https://github.com/desihub/desiutil/pull/105
 
 1.9.9 (2017-12-20)
 ------------------
diff --git a/py/desiutil/data/desiutil.module b/py/desiutil/data/desiutil.module
new file mode 100644
index 0000000..8d43cb0
--- /dev/null
+++ b/py/desiutil/data/desiutil.module
@@ -0,0 +1,77 @@
+#%Module1.0
+# The first line of this file tells Modules that this is a module file.
+# DO NOT ALTER IT!
+#
+# ABOUT THIS FILE
+#
+# This file is designed to be processed by Python.  Specifically, this file
+# will be read into a string, and the .format() method will be applied to it.
+# This file is not a valid module file on its own.
+#
+# METADATA AND DOCUMENTATION SECTION
+#
+# This function is part of the Modules help system.  You can modify
+# the second line if needed, but most products should
+# leave this alone.
+#
+proc ModulesHelp {{ }} {{
+    global product version
+    puts stderr "This module adds $product/$version to your environment."
+}}
+#
+# These variables are used below.  The product variable should be set to
+# the name of the product and never changed.  The version variable will
+# be set at install time, so it should be left alone.  The conflict line
+# prevents multiple versions from being loaded simultaneously.  Do not
+# change it.
+#
+set product {name}
+set version {version}
+conflict $product
+#
+# The line below is another part of the Modules help system.  You can
+# modify the part in quotes if you really need to, but most products should
+# leave this alone.
+#
+module-whatis "Sets up $product/$version in your environment."
+#
+# DEPENDENCIES SECTION
+#
+# If your product requires other software to function, that should be declared
+# here.  There are two types of dependencies: mandatory and optional.
+# A mandatory dependency is a module load command followed by a prereq
+# command.  An optional dependency is not followed by a prereq statement.
+#
+# NO DEPENDENCIES
+#
+# ENVIRONMENT SECTION
+#
+# The PRODUCT_ROOT and PRODUCT_DIR variables are used to set other
+# environment variables but are not exported to the actual environment.
+# If you are not working at NERSC, but still want to use Modules, you
+# will need to set the DESI_PRODUCT_ROOT environment variable
+#
+if {{[info exists env(DESI_PRODUCT_ROOT)]}} {{
+    set code_root $env(DESI_PRODUCT_ROOT)/code
+}} else {{
+    set code_root {product_root}
+}}
+set PRODUCT_DIR $code_root/$product/$version
+#
+# This line creates an environment variable pointing to the install
+# directory of your product.
+#
+setenv [string toupper $product] $PRODUCT_DIR
+#
+# The lines below set various other environment variables.  They assume the
+# template product layout.  These will be set or commented as needed by the
+# desiInstall script.
+#
+{needs_bin}prepend-path PATH $PRODUCT_DIR/bin
+{needs_python}prepend-path PYTHONPATH $PRODUCT_DIR/lib/{pyversion}/site-packages
+{needs_trunk_py}prepend-path PYTHONPATH $PRODUCT_DIR{trunk_py_dir}
+{needs_ld_lib}prepend-path LD_LIBRARY_PATH $PRODUCT_DIR/lib
+{needs_idl}prepend-path IDL_PATH +$PRODUCT_DIR/pro
+#
+# Add any non-standard Module code below this point.
+#
diff --git a/py/desiutil/install.py b/py/desiutil/install.py
index 29b0000..3640bd5 100644
--- a/py/desiutil/install.py
+++ b/py/desiutil/install.py
@@ -10,16 +10,15 @@ This package contains code for installing DESI software products.
 from __future__ import (absolute_import, division,
                         print_function, unicode_literals)
 # The line above will help with 2to3 support.
-from sys import argv, executable, path, version_info
-import requests
+import os
+import sys
 import tarfile
 import re
+import shutil
+import requests
 from subprocess import Popen, PIPE
-from datetime import date
 from types import MethodType
-from os import chdir, environ, getcwd, makedirs, remove, symlink
-from os.path import abspath, basename, exists, isdir, join
-from shutil import copytree, rmtree
+from pkg_resources import resource_filename
 from .git import last_tag
 from .log import get_logger, DEBUG, INFO
 from .modules import (init_modules, configure_module,
@@ -104,7 +103,7 @@ def dependencies(modulefile):
     ValueError
         If `modulefile` can't be found.
     """
-    if not exists(modulefile):
+    if not os.path.exists(modulefile):
         raise ValueError("Modulefile {0} does not exist!".format(modulefile))
     with open(modulefile) as m:
         lines = m.readlines()
@@ -133,8 +132,6 @@ class DesiInstall(object):
         this holds the object that reads it.
     default_nersc_dir_template : :class:`str`
         The default code and Modules install directory for every NERSC host.
-    executable : :class:`str`
-        The command used to invoke the script.
     fullproduct : :class:`str`
         The path to the product including its URL, *e.g.*,
         "https://github.com/desihub/desiutil".
@@ -153,8 +150,6 @@ class DesiInstall(object):
     product_url : :class:`str`
         The URL that will be used to download the code.  This differs from
         `fullproduct` in that it includes the tag or branch name.
-    test : :class:`bool`
-        Captures the value of the `test` argument passed to the constructor.
     """
     default_nersc_dir_template = '/global/common/software/desi/{nersc_host}/desiconda/{desiconda_version}'
 
@@ -190,12 +185,12 @@ class DesiInstall(object):
                      'NERSC_HOST': None}
         for e in check_env:
             try:
-                check_env[e] = environ[e]
+                check_env[e] = os.environ[e]
             except KeyError:
                 self.log.warning('The environment variable %s is not set!',
                                  e)
         parser = ArgumentParser(description="Install DESI software.",
-                                prog=basename(argv[0]))
+                                prog=os.path.basename(sys.argv[0]))
         parser.add_argument('-a', '--anaconda', action='store', dest='anaconda',
                             default=self.anaconda_version(), metavar='VERSION',
                             help="Set the version of the DESI+Anaconda software stack.")
@@ -303,7 +298,7 @@ class DesiInstall(object):
                 self.log.critical(message)
                 raise DesiInstallException(message)
         if (self.options.moduleshome is None or
-                not isdir(self.options.moduleshome)):
+                not os.path.isdir(self.options.moduleshome)):
             message = "You do not appear to have Modules set up."
             self.log.critical(message)
             raise DesiInstallException(message)
@@ -327,7 +322,7 @@ class DesiInstall(object):
                 for name, value in self.config.items("Known Products"):
                     known_products[name] = value
         if '/' in self.options.product:
-            self.baseproduct = basename(self.options.product)
+            self.baseproduct = os.path.basename(self.options.product)
         else:
             self.baseproduct = self.options.product
         try:
@@ -339,7 +334,7 @@ class DesiInstall(object):
                              self.baseproduct, self.fullproduct)
             self.log.warning('Add location to desiutil.install.known_products ' +
                              'if that is incorrect.')
-        self.baseversion = basename(self.options.product_version)
+        self.baseversion = os.path.basename(self.options.product_version)
         self.github = False
         if 'github.com' in self.fullproduct:
             self.github = True
@@ -362,16 +357,16 @@ class DesiInstall(object):
             if self.github:
                 self.product_url = self.fullproduct + '.git'
             else:
-                self.product_url = join(self.fullproduct,
-                                        self.options.product_version)
+                self.product_url = os.path.join(self.fullproduct,
+                                                self.options.product_version)
         else:
             if self.github:
-                self.product_url = join(self.fullproduct, 'archive',
-                                        self.options.product_version +
-                                        '.tar.gz')
+                self.product_url = os.path.join(self.fullproduct, 'archive',
+                                                self.options.product_version +
+                                                '.tar.gz')
             else:
-                self.product_url = join(self.fullproduct, 'tags',
-                                        self.options.product_version)
+                self.product_url = os.path.join(self.fullproduct, 'tags',
+                                                self.options.product_version)
         self.log.debug("Using %s as the URL of this product.",
                        self.product_url)
         return self.product_url
@@ -429,20 +424,21 @@ class DesiInstall(object):
         DesiInstallException
             If any download errors are detected.
         """
-        self.working_dir = join(abspath('.'), '{0}-{1}'.format(
-                                self.baseproduct, self.baseversion))
-        if isdir(self.working_dir):
+        self.working_dir = os.path.join(os.path.abspath('.'),
+                                        '{0}-{1}'.format(self.baseproduct,
+                                                         self.baseversion))
+        if os.path.isdir(self.working_dir):
             self.log.info("Detected old working directory, %s. Deleting...",
                           self.working_dir)
-            self.log.debug("rmtree('%s')", self.working_dir)
+            self.log.debug("shutil.rmtree('%s')", self.working_dir)
             if not self.options.test:
-                rmtree(self.working_dir)
+                shutil.rmtree(self.working_dir)
         if self.github:
             if self.is_trunk or self.is_branch:
                 if self.is_branch:
                     try:
-                        r = requests.get(join(self.fullproduct, 'tree',
-                                         self.baseversion))
+                        r = requests.get(os.path.join(self.fullproduct, 'tree',
+                                                      self.baseversion))
                         r.raise_for_status()
                     except requests.exceptions.HTTPError:
                         message = ("Branch {0} does not appear to exist. " +
@@ -466,10 +462,10 @@ class DesiInstall(object):
                     self.log.critical(message)
                     raise DesiInstallException(message)
                 if self.is_branch:
-                    original_dir = getcwd()
-                    self.log.debug("chdir('%s')", self.working_dir)
+                    original_dir = os.getcwd()
+                    self.log.debug("os.chdir('%s')", self.working_dir)
                     if not self.options.test:
-                        chdir(self.working_dir)
+                        os.chdir(self.working_dir)
                     command = ['git', 'checkout', '-q', '-b', self.baseversion,
                                'origin/'+self.baseversion]
                     self.log.debug(' '.join(command))
@@ -485,9 +481,9 @@ class DesiInstall(object):
                                    " {0}".format(err))
                         self.log.critical(message)
                         raise DesiInstallException(message)
-                    self.log.debug("chdir('%s')", original_dir)
+                    self.log.debug("os.chdir('%s')", original_dir)
                     if not self.options.test:
-                        chdir(original_dir)
+                        os.chdir(original_dir)
             else:
                 if self.options.test:
                     self.log.debug("Test Mode. Skipping download of %s.",
@@ -508,12 +504,14 @@ class DesiInstall(object):
                         tf.extractall()
                         tf.close()
                         tgz.close()
-                        self.working_dir = join(abspath('.'), '{0}-{1}'.format(
-                                                self.baseproduct, self.baseversion))
+                        self.working_dir = os.path.join(os.path.abspath('.'),
+                                                        '{0}-{1}'.format(self.baseproduct,
+                                                                         self.baseversion))
                         if self.baseversion.startswith('v'):
-                            nov = join(abspath('.'), '{0}-{1}'.format(
-                                       self.baseproduct, self.baseversion[1:]))
-                            if exists(nov):
+                            nov = os.path.join(os.path.abspath('.'),
+                                               '{0}-{1}'.format(self.baseproduct,
+                                                                self.baseversion[1:]))
+                            if os.path.exists(nov):
                                 self.working_dir = nov
                     except tarfile.TarError as e:
                         message = "tar error while expanding product code!"
@@ -556,14 +554,14 @@ class DesiInstall(object):
             self.log.debug("Forcing build type: make")
             build_type.add('make')
         else:
-            if exists(join(self.working_dir, 'setup.py')):
+            if os.path.exists(os.path.join(self.working_dir, 'setup.py')):
                 self.log.debug("Detected build type: py")
                 build_type.add('py')
-            if exists(join(self.working_dir, 'Makefile')):
+            if os.path.exists(os.path.join(self.working_dir, 'Makefile')):
                 self.log.debug("Detected build type: make")
                 build_type.add('make')
             else:
-                if isdir(join(self.working_dir, 'src')):
+                if os.path.isdir(os.path.join(self.working_dir, 'src')):
                     self.log.debug("Detected build type: src")
                     build_type.add('src')
         return build_type
@@ -578,11 +576,11 @@ class DesiInstall(object):
             The DESI+Anaconda version.
         """
         try:
-            desiconda = environ['DESICONDA']
+            desiconda = os.environ['DESICONDA']
         except KeyError:
             return 'current'
         try:
-            return basename(desiconda[:desiconda.index('/code/desiconda')])
+            return os.path.basename(desiconda[:desiconda.index('/conda')])
         except ValueError:
             return 'current'
 
@@ -614,23 +612,23 @@ class DesiInstall(object):
             The directory selected for installation.
         """
         try:
-            self.nersc = environ['NERSC_HOST']
+            self.nersc = os.environ['NERSC_HOST']
         except KeyError:
             self.nersc = None
-        if self.options.root is None or not isdir(self.options.root):
+        if self.options.root is None or not os.path.isdir(self.options.root):
             if self.nersc is not None:
                 self.options.root = self.default_nersc_dir()
             else:
                 message = "Root install directory is missing or not set."
                 self.log.critical(message)
                 raise DesiInstallException(message)
-        self.install_dir = join(self.options.root, 'code', self.baseproduct,
-                                self.baseversion)
-        if isdir(self.install_dir) and not self.options.test:
+        self.install_dir = os.path.join(self.options.root, 'code',
+                                        self.baseproduct, self.baseversion)
+        if os.path.isdir(self.install_dir) and not self.options.test:
             if self.options.force:
-                self.log.debug("rmtree('%s')", self.install_dir)
+                self.log.debug("shutil.rmtree('%s')", self.install_dir)
                 if not self.options.test:
-                    rmtree(self.install_dir)
+                    shutil.rmtree(self.install_dir)
             else:
                 message = ("Install directory, {0}, already exists!".format(
                            self.install_dir))
@@ -668,17 +666,11 @@ class DesiInstall(object):
         :class:`list`
             The list of dependencies.
         """
-        self.module_file = join(self.working_dir, 'etc',
-                                self.baseproduct + '.module')
-        if not exists(self.module_file):
-            try:
-                self.module_file = join(environ['DESIUTIL'], 'etc',
-                                        'desiutil.module')
-            except KeyError:
-                message = ("DESIUTIL is not set.  " +
-                           "Is desiutil installed and loaded?")
-                self.log.critical(message)
-                raise DesiInstallException(message)
+        self.module_file = os.path.join(self.working_dir, 'etc',
+                                        self.baseproduct + '.module')
+        if not os.path.exists(self.module_file):
+            self.module_file = resource_filename('desiutil',
+                                                 'data/desiutil.module')
         if self.options.test:
             self.log.debug('Test Mode. Skipping loading of dependencies.')
             self.deps = list()
@@ -686,7 +678,7 @@ class DesiInstall(object):
             self.deps = dependencies(self.module_file)
             for d in self.deps:
                 base_d = d.split('/')[0]
-                if base_d in environ['LOADEDMODULES']:
+                if base_d in os.environ['LOADEDMODULES']:
                     m_command = 'switch'
                 else:
                     m_command = 'load'
@@ -704,11 +696,11 @@ class DesiInstall(object):
             return None
         else:
             if self.baseproduct == 'desimodules':
-                nersc_module = join(self.default_nersc_dir_template.format(nersc_host=self.nersc, desiconda_version='startup'),
-                                    'modulefiles')
+                nersc_module = os.path.join(self.default_nersc_dir_template.format(nersc_host=self.nersc, desiconda_version='startup'),
+                                            'modulefiles')
             else:
-                nersc_module = join(self.default_nersc_dir(),
-                                    'modulefiles')
+                nersc_module = os.path.join(self.default_nersc_dir(),
+                                            'modulefiles')
         if not hasattr(self, 'config'):
             return nersc_module
         if self.config is not None:
@@ -735,14 +727,14 @@ class DesiInstall(object):
             if self.is_trunk or self.is_branch:
                 dev = True
         else:
-            if isdir(join(self.working_dir, 'py')):
+            if os.path.isdir(os.path.join(self.working_dir, 'py')):
                 dev = True
         self.log.debug("configure_module(%s, %s, working_dir=%s, dev=%s)",
                        self.baseproduct, self.baseversion,
                        self.working_dir, dev)
         self.module_keywords = configure_module(self.baseproduct,
                                                 self.baseversion,
-                                                join(self.options.root, 'code'),
+                                                os.path.join(self.options.root, 'code'),
                                                 working_dir=self.working_dir,
                                                 dev=dev)
         if self.options.moduledir is None:
@@ -750,18 +742,18 @@ class DesiInstall(object):
             # We didn't set a module dir, so derive it from options.root
             #
             if self.nersc is None:
-                self.options.moduledir = join(self.options.root, 'modulefiles')
+                self.options.moduledir = os.path.join(self.options.root, 'modulefiles')
             else:
                 self.options.moduledir = self.nersc_module_dir
                 self.log.debug("nersc_module_dir set to %s.",
                                self.options.moduledir)
             if not self.options.test:
-                if not isdir(self.options.moduledir):
+                if not os.path.isdir(self.options.moduledir):
                     self.log.info("Creating Modules directory %s.",
                                   self.options.moduledir)
-                    self.log.debug("makedirs('%s')", self.options.moduledir)
+                    self.log.debug("os.makedirs('%s')", self.options.moduledir)
                     try:
-                        makedirs(self.options.moduledir)
+                        os.makedirs(self.options.moduledir)
                     except OSError as ose:
                         self.log.critical(ose.strerror)
                         raise DesiInstallException(ose.strerror)
@@ -793,12 +785,12 @@ class DesiInstall(object):
         :class:`str`
             The current working directory.  Because we're about to change it.
         """
-        environ['WORKING_DIR'] = self.working_dir
-        environ['INSTALL_DIR'] = self.install_dir
+        os.environ['WORKING_DIR'] = self.working_dir
+        os.environ['INSTALL_DIR'] = self.install_dir
         if self.baseproduct == 'desiutil':
-            environ['DESIUTIL'] = self.install_dir
+            os.environ['DESIUTIL'] = self.install_dir
         else:
-            if self.baseproduct in environ['LOADEDMODULES']:
+            if self.baseproduct in os.environ['LOADEDMODULES']:
                 m_command = 'switch'
             else:
                 m_command = 'load'
@@ -809,9 +801,9 @@ class DesiInstall(object):
         env_version = self.baseproduct.upper() + '_VERSION'
         # The current install script expects a version in the form of
         # branches/test-0.4 or tags/0.4.4 or trunk
-        if env_version not in environ:
-            environ[env_version] = 'tags/'+self.baseversion
-        self.original_dir = getcwd()
+        if env_version not in os.environ:
+            os.environ[env_version] = 'tags/'+self.baseversion
+        self.original_dir = os.getcwd()
         return self.original_dir
 
     def get_extra(self):
@@ -819,19 +811,14 @@ class DesiInstall(object):
 
         This is done here so that :envvar:`INSTALL_DIR` is defined.
         """
-        extra_script = join(self.working_dir, 'etc',
-                            '{0}_data.sh'.format(self.baseproduct))
-        if exists(extra_script):
+        extra_script = os.path.join(self.working_dir, 'etc',
+                                    '{0}_data.sh'.format(self.baseproduct))
+        if os.path.exists(extra_script):
             self.log.debug("Detected extra script: %s.", extra_script)
-            self.log.debug("makedirs('%s')", self.install_dir)
+            self.log.debug("os.makedirs('%s')", self.install_dir)
             if self.options.test:
                 self.log.debug('Test Mode. Skipping install of extra data.')
             else:
-                try:
-                    makedirs(self.install_dir)
-                except OSError as ose:
-                    self.log.critical(ose.strerror)
-                    raise DesiInstallException(ose.strerror)
                 proc = Popen([extra_script], universal_newlines=True,
                              stdout=PIPE, stderr=PIPE)
                 out, err = proc.communicate()
@@ -851,55 +838,55 @@ class DesiInstall(object):
             # For certain installs, all that is needed is to copy the
             # downloaded code to the install directory.
             #
-            self.log.debug("copytree('%s', '%s')",
+            self.log.debug("shutil.copytree('%s', '%s')",
                            self.working_dir, self.install_dir)
             if self.options.test:
                 self.log.debug("Test mode. Skipping copy of %s to %s.",
                                self.working_dir, self.install_dir)
             else:
-                copytree(self.working_dir, self.install_dir)
+                shutil.copytree(self.working_dir, self.install_dir)
         else:
             #
             # Run a 'real' install
             #
-            # chdir(self.working_dir)
+            # os.chdir(self.working_dir)
             if 'py' in self.build_type:
                 #
                 # For Python installs, a site-packages directory needs to
                 # exist.  We may need to manipulate sys.path to include this
                 # directory.
                 #
-                lib_dir = join(self.install_dir, 'lib',
-                               self.module_keywords['pyversion'],
-                               'site-packages')
+                lib_dir = os.path.join(self.install_dir, 'lib',
+                                       self.module_keywords['pyversion'],
+                                       'site-packages')
                 if self.options.test:
                     self.log.debug("Test Mode.  Skipping creation of %s.",
                                    lib_dir)
                 else:
-                    self.log.debug("makedirs('%s')", lib_dir)
+                    self.log.debug("os.makedirs('%s')", lib_dir)
                     try:
-                        makedirs(lib_dir)
+                        os.makedirs(lib_dir)
                     except OSError as ose:
                         self.log.critical(ose.strerror)
                         raise DesiInstallException(ose.strerror)
-                    if lib_dir not in path:
+                    if lib_dir not in sys.path:
                         try:
                             newpythonpath = (lib_dir + ':' +
-                                             environ['PYTHONPATH'])
+                                             os.environ['PYTHONPATH'])
                         except KeyError:
                             newpythonpath = lib_dir
-                        environ['PYTHONPATH'] = newpythonpath
-                        path.insert(int(path[0] == ''), lib_dir)
+                        os.environ['PYTHONPATH'] = newpythonpath
+                        sys.path.insert(int(sys.path[0] == ''), lib_dir)
                 #
                 # Ready to python setup.py
                 #
-                command = [executable, 'setup.py', 'install',
+                command = [sys.executable, 'setup.py', 'install',
                            '--prefix={0}'.format(self.install_dir)]
                 self.log.debug(' '.join(command))
                 if self.options.test:
                     self.log.debug("Test Mode.  Skipping 'python setup.py install'.")
                 else:
-                    chdir(self.working_dir)
+                    os.chdir(self.working_dir)
                     proc = Popen(command, universal_newlines=True,
                                  stdout=PIPE, stderr=PIPE)
                     out, err = proc.communicate()
@@ -941,9 +928,9 @@ class DesiInstall(object):
                     self.log.debug("Test Mode.  Skipping 'make install'.")
                 else:
                     if 'src' in self.build_type:
-                        chdir(self.install_dir)
+                        os.chdir(self.install_dir)
                     else:
-                        chdir(self.working_dir)
+                        os.chdir(self.working_dir)
                     proc = Popen(command, universal_newlines=True,
                                  stdout=PIPE, stderr=PIPE)
                     out, err = proc.communicate()
@@ -964,6 +951,31 @@ class DesiInstall(object):
                             raise DesiInstallException(message)
         return
 
+    def verify_bootstrap(self):
+        """Make sure that desiutil/desiInstall was installed with
+        an explicit Python executable path.
+
+        For anything besides an initial bootstrap install of desiutil,
+        this function does nothing.
+
+        Returns
+        -------
+        :class:`bool`
+            Returns ``True`` if everything is OK.
+        """
+        if self.options.bootstrap:
+            desiInstall = os.path.join(self.install_dir, 'bin', 'desiInstall')
+            with open(desiInstall, 'r') as d:
+                lines = d.readlines()
+            self.log.debug("%s", lines[0].strip())
+            if self.options.anaconda not in lines[0]:
+                message = ("desiInstall executable ({0}) does not contain " +
+                           "an explicit desiconda version " +
+                           "({1})!").format(desiInstall, self.options.anaconda)
+                self.log.critical(message)
+                raise DesiInstallException(message)
+        return True
+
     def permissions(self):
         """Fix possible install permission errors.
 
@@ -994,13 +1006,13 @@ class DesiInstall(object):
         :class:`bool`
             Returns ``True``
         """
-        self.log.debug("chdir('%s')", self.original_dir)
+        self.log.debug("os.chdir('%s')", self.original_dir)
         if not self.options.test:
-            chdir(self.original_dir)
+            os.chdir(self.original_dir)
         if not self.options.keep:
-            self.log.debug("rmtree('%s')", self.working_dir)
+            self.log.debug("shutil.rmtree('%s')", self.working_dir)
             if not self.options.test:
-                rmtree(self.working_dir)
+                shutil.rmtree(self.working_dir)
         return True
 
     def run(self):  # pragma: no cover
@@ -1026,6 +1038,7 @@ class DesiInstall(object):
             self.prepare_environment()
             self.get_extra()
             self.install()
+            self.verify_bootstrap()
             self.permissions()
         except DesiInstallException:
             return 1

installed  code shouldn't reference desiconda/current
A path problem for the 18.2 install, which we need to fix for 18.3:

```
[cori10 ~] source /project/projectdirs/desi/software/desi_environment_18.2.sh  
[cori10 ~] echo $DESICONDA
/global/common/software/desi/cori/desiconda/20180130-1.2.4-spec/conda
[cori10 ~] which desi_extract_spectra 
/global/common/software/desi/cori/desiconda/current/code/desispec/0.18.0/bin/desi_extract_spectra
[cori10 ~] head $(which desi_extract_spectra )
#!/global/common/software/desi/cori/desiconda/current/conda/bin/python
# EASY-INSTALL-SCRIPT: 'desispec==0.18.0','desi_extract_spectra'
__requires__ = 'desispec==0.18.0'
__import__('pkg_resources').run_script('desispec==0.18.0', 'desi_extract_spectra')
```

Note that those are in terms of desiconda/current instead of desiconda/20180130-1.2.4-spec .  Right now those are the same, but when we update which version of desiconda is "current" it will change the underlying desiconda version used when someone configures 18.2.  For 18.3, we should make sure that all the paths use desiconda/20180130-1.2.4-spec and don't rely upon "current".

As a procedure, I hope this is as simple as configuring desiconda/20180130-1.2.4-spec instead of desiconda/current before proceeding with installations.  It would be extra helpful if desiInstall could resolve symlinks into their final non-symlinked path; unfortunately `os.path.abspath` doesn't do that.

diff --git a/py/desiutil/test/test_install.py b/py/desiutil/test/test_install.py
index 54b5487..8f78efb 100644
--- a/py/desiutil/test/test_install.py
+++ b/py/desiutil/test/test_install.py
@@ -266,10 +266,10 @@ class TestInstall(unittest.TestCase):
         with patch.dict('os.environ', {'DESICONDA': 'FOO'}):
             v = self.desiInstall.anaconda_version()
             self.assertEqual(v, 'current')
-            environ['DESICONDA'] = '/global/common/software/desi/cori/desiconda/20170613-1.1.4-spectro/code/desiconda/20170613-1.1.4-spectro_conda'
+            environ['DESICONDA'] = '/global/common/software/desi/cori/desiconda/20170613-1.1.4-spectro/conda'
             v = self.desiInstall.anaconda_version()
             self.assertEqual(v, '20170613-1.1.4-spectro')
-            environ['DESICONDA'] = '/global/common/software/desi/cori/desiconda/20170613-1.1.4-spectro/CODE/desiconda/20170613-1.1.4-spectro_conda'
+            environ['DESICONDA'] = '/global/common/software/desi/cori/desiconda/20170613-1.1.4-spectro/code/desiconda/20170613-1.1.4-spectro_conda'
             v = self.desiInstall.anaconda_version()
             self.assertEqual(v, 'current')
 

pip install -e .
parse_log_pytest
requirements.txt
pytest
apt-get update apt-get install -y gcc
3.9
requirements.txt
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
astropy==6.0.1
astropy-iers-data==0.2025.3.31.0.36.18
certifi==2025.1.31
charset-normalizer==3.4.1
contourpy==1.3.0
cycler==0.12.1
-e git+https://github.com/desihub/desiutil.git@2ca867f079c18629bde67dd21c1d64642e75d115#egg=desiutil
exceptiongroup==1.2.2
fonttools==4.56.0
healpy==1.17.3
idna==3.10
importlib_resources==6.5.2
iniconfig==2.1.0
kiwisolver==1.4.7
matplotlib==3.9.4
numpy==1.26.4
packaging==24.2
pillow==11.1.0
pluggy==1.5.0
pyerfa==2.0.1.5
pyparsing==3.2.3
pytest==8.3.5
python-dateutil==2.9.0.post0
PyYAML==6.0.2
requests==2.32.3
six==1.17.0
tomli==2.2.1
urllib3==2.3.0
zipp==3.21.0

name: desiutil
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - ca-certificates=2025.2.25=h06a4308_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.4.4=h6a678d5_1
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=3.0.16=h5eee18b_0
  - pip=25.0=py39h06a4308_0
  - python=3.9.21=he870216_1
  - readline=8.2=h5eee18b_0
  - setuptools=75.8.0=py39h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - tzdata=2025a=h04d1e81_0
  - wheel=0.45.1=py39h06a4308_0
  - xz=5.6.4=h5eee18b_1
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - astropy==6.0.1
      - astropy-iers-data==0.2025.3.31.0.36.18
      - certifi==2025.1.31
      - charset-normalizer==3.4.1
      - contourpy==1.3.0
      - cycler==0.12.1
      - exceptiongroup==1.2.2
      - fonttools==4.56.0
      - healpy==1.17.3
      - idna==3.10
      - importlib-resources==6.5.2
      - iniconfig==2.1.0
      - kiwisolver==1.4.7
      - matplotlib==3.9.4
      - numpy==1.26.4
      - packaging==24.2
      - pillow==11.1.0
      - pluggy==1.5.0
      - pyerfa==2.0.1.5
      - pyparsing==3.2.3
      - pytest==8.3.5
      - python-dateutil==2.9.0.post0
      - pyyaml==6.0.2
      - requests==2.32.3
      - six==1.17.0
      - tomli==2.2.1
      - urllib3==2.3.0
      - zipp==3.21.0
prefix: /opt/conda/envs/desiutil

py/desiutil/test/test_install.py::TestInstall::test_anaconda_version
py/desiutil/test/test_install.py::TestInstall::test_get_options py/desiutil/test/test_install.py::TestInstall::test_verify_url
py/desiutil/test/test_install.py::TestInstall::test_build_type py/desiutil/test/test_install.py::TestInstall::test_cleanup py/desiutil/test/test_install.py::TestInstall::test_default_nersc_dir py/desiutil/test/test_install.py::TestInstall::test_dependencies py/desiutil/test/test_install.py::TestInstall::test_get_product_version py/desiutil/test/test_install.py::TestInstall::test_identify_branch py/desiutil/test/test_install.py::TestInstall::test_nersc_module_dir py/desiutil/test/test_install.py::TestInstall::test_sanity_check py/desiutil/test/test_install.py::TestInstall::test_set_install_dir py/desiutil/test/test_install.py::test_suite
doc/changes.rst py/desiutil/install.py py/desiutil/data/desiutil.module
doc/changes.rst py/desiutil/install.py py/desiutil/data/desiutil.module