Traceback (most recent call last):

 "/mnt/gen2/TmpDir/portage/dev-python/logbook-0.5.0/work/logbook-0.5.0-pypy2_0/tests/test_logbook.py", line 102, in test_formatting_exception
"Could not format message with provided arguments: Invalid (?:format specifier)|(?:conversion specification)")AssertionError: Regexp didn't match: 'Could not format message with provided arguments: Invalid (?:format specifier)|(?:conversion specification)' not found in "Could not format message with provided arguments: invalid format spec\n
msg='Hello {foo:invalid}'\n
args=() \n
kwargs={'foo': 42}.\nHappened in file /mnt/gen2/TmpDir/portage/dev-python/logbook-0.5.0/work/logbook-0.5.0-pypy2_0/tests/test_logbook.py, line 95"

Traceback (most recent call last):


 "/home/snadar/anaconda3/lib/python3.6/site-packages/conda/exceptions.py", line 640, in conda_exception_handler

return_value = func(*args, **kwargs)


 "/home/snadar/anaconda3/lib/python3.6/site-packages/conda_env/cli/main_create.py", line 108, in execute

installer.install(prefix, pkg_specs, args, env)


 "/home/snadar/anaconda3/lib/python3.6/site-packages/conda_env/installers/pip.py", line 8, in install

pip_cmd = pip_args(prefix) + ['install', ] + specs

TypeError: can only concatenate list (not "NoneType") to list
