Errors while installing python packages - django

Question

I 'm not able to install python packages from both pip and easy_install. There's some absurd kind of error that keeps popping up. Kindly help to rectify it.
I get the same errors while using python setup.py install.
Error while installing django-memcached
C:\Users\Praful\Desktop\django-redis-master>easy_install django-memcached
Traceback (most recent call last):
File "C:\Python27\Scripts\easy_install-script.py", line 9, in <module>
load_entry_point('distribute==0.6.27', 'console_scripts', 'easy_install')()
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\setuptools\com
mand\easy_install.py", line 1915, in main
with_ei_usage(lambda:
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\setuptools\com
mand\easy_install.py", line 1896, in with_ei_usage
return f()
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\setuptools\com
mand\easy_install.py", line 1919, in <lambda>
distclass=DistributionWithoutHelpCommands, **kw
File "C:\Python27\lib\distutils\core.py", line 112, in setup
_setup_distribution = dist = klass(attrs)
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\setuptools\dis
t.py", line 222, in __init__
for ep in pkg_resources.iter_entry_points('distutils.setup_keywords'):
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\pkg_resources.
py", line 486, in iter_entry_points
entries = dist.get_entry_map(group)
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\pkg_resources.
py", line 2315, in get_entry_map
self._get_metadata('entry_points.txt'), self
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\pkg_resources.
py", line 2101, in parse_map
raise ValueError("Entry points must be listed in groups")
ValueError: Entry points must be listed in groups
Error while installing python-memcache
C:\Users\Praful\Desktop\mem>python setup.py install
Traceback (most recent call last):
File "setup.py", line 24, in <module>
"Topic :: Software Development :: Libraries :: Python Modules",
File "C:\Python27\lib\distutils\core.py", line 112, in setup
_setup_distribution = dist = klass(attrs)
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\setuptools\dis
t.py", line 222, in __init__
for ep in pkg_resources.iter_entry_points('distutils.setup_keywords'):
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\pkg_resources.
py", line 486, in iter_entry_points
entries = dist.get_entry_map(group)
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\pkg_resources.
py", line 2315, in get_entry_map
self._get_metadata('entry_points.txt'), self
File "C:\Python27\lib\site-packages\distribute-0.6.27-py2.7.egg\pkg_resources.
py", line 2101, in parse_map
raise ValueError("Entry points must be listed in groups")
ValueError: Entry points must be listed in groups

Answer 1

Find get_entry_map(self, group=None): into python\Lib\sitepackages\pkg_resources\__init__.py. Insert after print self.egg_info
Run python setup.py and look to the last printed - broken package.
Remember it, later to install again. Delete the folder of broken
package and folder broken_package-version.dist-info. Run again paragraph 2, until the error disappears.
Remove changes from paragraph 1.
python setup.py install 'broken_package'

Answer 2

This error happened to me installing any package. My solution was going to my file explorer, typing in the path bar %appdata%, going to the Python folder, and deleting everything inside.

Answer 3

I found the same problem to be caused by a misfometted entry_points.txt file in one instelled egg of mine.
It can be quite hard to track down which one is if there are many.
I managed to find that little ba##!"d by creating and run setup.py for a dummy package:
setup.py
from setuptools import setup, find_packages
setup(
name = "IWillFindYou",
version = "0.1",
packages = find_packages()
)
run this in debug mode would point to this line in pkg_resources.py
def parse_map(cls, data, dist=None):
[...]
raise ValueError("Entry points must be listed in groups")
if you go back to the stack trace, you will see that parse_map is called here:
def get_entry_map(self, group=None):
[...]
ep_map = self._ep_map = EntryPoint.parse_map(
self._get_metadata('entry_points.txt'), self
)
evaluating self.egg_info will point up your evil egg so you can give a look to the entry_points.txt file.
If you are not handy with debugger, you may try to place print self.egg_info in get_entry_map and look to the last guy printed.

Answer 4

My Resolution Approach
Platform: windows 10, ConEmu-Maximus5
Delete virtual environment automatically created by poetry install command.
windows users can find the virtual environment folder in the path below
C:\Users\YOUR_PC_USERNAME\AppData\Local\pypoetry\Cache\virtualenvs
(don't know of linux path)
close terminal / command prompt
open terminal / command prompt and navigate to project folder
re run poetry install
I hope it helps...
How i encountered the error
It was my first time using poetry, while running poetry install, the process got interrupted. running the command again popped out the error.

Answer 5

Could be a problem with distribute. I'd recommend re-installing Python.