fragile console script: pkg_resources.DistributionNotFound - pip

Question

If I create console_scripts via entry_point in setup.py, then this file gets created:
#!/home/myproject_cok_d/bin/python
# EASY-INSTALL-ENTRY-SCRIPT: 'mylib','console_scripts','do-magic'
__requires__ = 'mylib'
import re
import sys
from pkg_resources import load_entry_point
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
sys.exit(
load_entry_point('mylib', 'console_scripts', 'do-magic')()
)
Unfortunately this script is fragile.
Sometimes I get exceptions like this:
Traceback (most recent call last):
File ".../bin/do-magic", line 6, in <module>
from pkg_resources import load_entry_point
File ".../local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2999, in <module>
#_call_aside
File ".../local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2985, in _call_aside
f(*args, **kwargs)
File ".../local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3012, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File ".../local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 662, in _build_master
ws.require(__requires__)
File ".../local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 970, in require
needed = self.resolve(parse_requirements(requirements))
File ".../local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 856, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'PyPDF2==1.26' distribution was not found and is required by mylib
Is there a way to make my script (do-magic) more mature?
In this case: It does not need PyPDF2.

Answer 1

I ran into the same error. To solve this issue, you must update PYTHONPATH to add the site directory. On Windows you would go to your the command prompt and type this:
set pythonpath=<PATH_TO_SITE_DIR>
And Mac is this:
export PYTHONPATH="${PYTHONPATH}:<PATH_TO_SITE_DIR>"
Here is more information about the error.