virtualEnvironment/lib/python2.7/site-packages/pip/req/req_set.py
def install(self, install_options, global_options=(), *args, **kwargs):
        """
        Install everything in this set (after having downloaded and unpacked
        the packages)
        """
        to_install = [r for r in self.requirements.values()[::-1]
                      if not r.satisfied_by]

        # DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts)
        # move the distribute-0.7.X wrapper to the end because it does not
        # install a setuptools package. by moving it to the end, we ensure it's
        # setuptools dependency is handled first, which will provide the
        # setuptools package
        # TODO: take this out later
        distribute_req = pkg_resources.Requirement.parse("distribute>=0.7")
        for req in to_install:
            if (req.name == 'distribute'
                    and req.installed_version is not None
                    and req.installed_version in distribute_req):
                to_install.remove(req)
                to_install.append(req)

        if to_install:
            logger.info(
                'Installing collected packages: %s',
                ', '.join([req.name for req in to_install]),
            )

        with indent_log():
            for requirement in to_install:

                # DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts)
                # when upgrading from distribute-0.6.X to the new merged
                # setuptools in py2, we need to force setuptools to uninstall
                # distribute. In py3, which is always using distribute, this
                # conversion is already happening in distribute's
                # pkg_resources. It's ok *not* to check if setuptools>=0.7
                # because if someone were actually trying to ugrade from
                # distribute to setuptools 0.6.X, then all this could do is
                # actually help, although that upgade path was certainly never
                # "supported"
                # TODO: remove this later
                if requirement.name == 'setuptools':
                    try:
                        # only uninstall distribute<0.7. For >=0.7, setuptools
                        # will also be present, and that's what we need to
                        # uninstall
                        distribute_requirement = \
                            pkg_resources.Requirement.parse("distribute<0.7")
                        existing_distribute = \
                            pkg_resources.get_distribution("distribute")
                        if existing_distribute in distribute_requirement:
                            requirement.conflicts_with = existing_distribute
                    except pkg_resources.DistributionNotFound:
                        # distribute wasn't installed, so nothing to do
                        pass

                if requirement.conflicts_with:
                    logger.info(
                        'Found existing installation: %s',
                        requirement.conflicts_with,
                    )
                    with indent_log():
                        requirement.uninstall(auto_confirm=True)
                try:
                    requirement.install(
                        install_options,
                        global_options,
                        *args,
                        **kwargs
                    )
                except:
                    # if install did not succeed, rollback previous uninstall
                    if (requirement.conflicts_with
                            and not requirement.install_succeeded):
                        requirement.rollback_uninstall()
                    raise
                else:
                    if (requirement.conflicts_with
                            and requirement.install_succeeded):
                        requirement.commit_uninstall()
                requirement.remove_temporary_source()

        self.successfully_installed = to_install
def install(self, install_options, global_options=(), *args, **kwargs):
        """
        Install everything in this set (after having downloaded and unpacked
        the packages)
        """
        to_install = [r for r in self.requirements.values()[::-1]
                      if not r.satisfied_by]

        # DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts)
        # move the distribute-0.7.X wrapper to the end because it does not
        # install a setuptools package. by moving it to the end, we ensure it's
        # setuptools dependency is handled first, which will provide the
        # setuptools package
        # TODO: take this out later
        distribute_req = pkg_resources.Requirement.parse("distribute>=0.7")
        for req in to_install:
            if (req.name == 'distribute'
                    and req.installed_version is not None
                    and req.installed_version in distribute_req):
                to_install.remove(req)
                to_install.append(req)

        if to_install:
            logger.info(
                'Installing collected packages: %s',
                ', '.join([req.name for req in to_install]),
            )

        with indent_log():
            for requirement in to_install:

                # DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts)
                # when upgrading from distribute-0.6.X to the new merged
                # setuptools in py2, we need to force setuptools to uninstall
                # distribute. In py3, which is always using distribute, this
                # conversion is already happening in distribute's
                # pkg_resources. It's ok *not* to check if setuptools>=0.7
                # because if someone were actually trying to ugrade from
                # distribute to setuptools 0.6.X, then all this could do is
                # actually help, although that upgade path was certainly never
                # "supported"
                # TODO: remove this later
                if requirement.name == 'setuptools':
                    try:
                        # only uninstall distribute<0.7. For >=0.7, setuptools
                        # will also be present, and that's what we need to
                        # uninstall
                        distribute_requirement = \
                            pkg_resources.Requirement.parse("distribute<0.7")
                        existing_distribute = \
                            pkg_resources.get_distribution("distribute")
                        if existing_distribute in distribute_requirement:
                            requirement.conflicts_with = existing_distribute
                    except pkg_resources.DistributionNotFound:
                        # distribute wasn't installed, so nothing to do
                        pass

                if requirement.conflicts_with:
                    logger.info(
                        'Found existing installation: %s',
                        requirement.conflicts_with,
                    )
                    with indent_log():
                        requirement.uninstall(auto_confirm=True)
                try:
                    requirement.install(
                        install_options,
                        global_options,
                        *args,
                        **kwargs
                    )
                except:
                    # if install did not succeed, rollback previous uninstall
                    if (requirement.conflicts_with
                            and not requirement.install_succeeded):
                        requirement.rollback_uninstall()
                    raise
                else:
                    if (requirement.conflicts_with
                            and requirement.install_succeeded):
                        requirement.commit_uninstall()
                requirement.remove_temporary_source()

        self.successfully_installed = to_install
def install ( self , install_options , global_options = ( ) , * args , * * kwargs ) : to_install = [ r for r in self . requirements . values ( ) [ : : - 1 ] if not r . satisfied_by ] # DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts) # move the distribute-0.7.X wrapper to the end because it does not # install a setuptools package. by moving it to the end, we ensure it's # setuptools dependency is handled first, which will provide the # setuptools package # TODO: take this out later distribute_req = pkg_resources . Requirement . parse ( "distribute>=0.7" ) for req in to_install : if ( req . name == 'distribute' and req . installed_version is not None and req . installed_version in distribute_req ) : to_install . remove ( req ) to_install . append ( req ) if to_install : logger . info ( 'Installing collected packages: %s' , ', ' . join ( [ req . name for req in to_install ] ) , ) with indent_log ( ) : for requirement in to_install : # DISTRIBUTE TO SETUPTOOLS UPGRADE HACK (1 of 3 parts) # when upgrading from distribute-0.6.X to the new merged # setuptools in py2, we need to force setuptools to uninstall # distribute. In py3, which is always using distribute, this # conversion is already happening in distribute's # pkg_resources. It's ok *not* to check if setuptools>=0.7 # because if someone were actually trying to ugrade from # distribute to setuptools 0.6.X, then all this could do is # actually help, although that upgade path was certainly never # "supported" # TODO: remove this later if requirement . name == 'setuptools' : try : # only uninstall distribute<0.7. For >=0.7, setuptools # will also be present, and that's what we need to # uninstall distribute_requirement = pkg_resources . Requirement . parse ( "distribute<0.7" ) existing_distribute = pkg_resources . get_distribution ( "distribute" ) if existing_distribute in distribute_requirement : requirement . conflicts_with = existing_distribute except pkg_resources . DistributionNotFound : # distribute wasn't installed, so nothing to do pass if requirement . conflicts_with : logger . info ( 'Found existing installation: %s' , requirement . conflicts_with , ) with indent_log ( ) : requirement . uninstall ( auto_confirm = True ) try : requirement . install ( install_options , global_options , * args , * * kwargs ) except : # if install did not succeed, rollback previous uninstall if ( requirement . conflicts_with and not requirement . install_succeeded ) : requirement . rollback_uninstall ( ) raise else : if ( requirement . conflicts_with and requirement . install_succeeded ) : requirement . commit_uninstall ( ) requirement . remove_temporary_source ( ) self . successfully_installed = to_install
Install everything in this set (after having downloaded and unpacked
        the packages)
Install everything in this set ( after having downloaded and unpacked the packages )