Develop Reference

Have difficulty to solve "No module named pkg_resources"

Hope someone can help me! I appreciate it.
I tried to download some open source from GitHub, but it shows "No module named pkg_resources".
Then I searched some solution from No module named pkg_resources , but it showed the error below. I also found some solution from other articles, but it still not working.
Installing Setuptools
running install
error: can't create or remove files in install directory
The following error occurred while trying to add or remove files in the
installation directory:
[Errno 13] Permission denied: '/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/test-easy-install-48274.write-test'
The installation directory you specified (via --install-dir, --prefix, or
the distutils default setting) was:
/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/
Perhaps your account does not have write access to this directory? If the
installation directory is a system-owned directory, you may need to sign in
as the administrator or "root" account. If you do not have administrative
access to this machine, you may wish to choose a different installation
directory, preferably one that is listed in your PYTHONPATH environment
variable.
For information on other options, you may wish to consult the
documentation at:
https://setuptools.readthedocs.io/en/latest/easy_install.html
Please make the appropriate changes for your system and try again.
Something went wrong during the installation.
See the error message above.
p.s. I couldn't open that link in the error messages https://setuptools.readthedocs.io/en/latest/easy_install.html.
By the way, I've checked my pip version and it also showed "No module named pkg_resources". I'm confused because I use Python for like 1-2 years, and everything goes fine, but I just found this error message today. If I couldn't solve this problem, it might be a huge trouble because I can't download everything about "Pip".

Probably the easiest solution would be to download get-pip.py, then run it using sudo:
sudo python3 get-pip.py
assuming you have admin permissions on your computer. easy_install has been deprecated for a long time, and pip is definitely the way to go. By reinstalling pip, setuptools and all its dependencies should be correctly installed as well.

Error loading shared library libpython3.7m.so.1.0: No such file or directory (needed by /usr/local/bin/coverage)

I seem to be having issues with my python interpreter. I am getting the following error on my terminal when trying to start the Django webserver:
1) Error loading shared library libpython3.7m.so.1.0: No such file or
directory (needed by /usr/local/bin/coverage) 2) Error relocating
/usr/local/bin/coverage: _Py_UnixMain: symbol not found
Any idea or clues on what I should be looking for in regards to the error above? I am running ubuntu on my system. This problem seems to occur after I started a new Django project.
Thank you.

This seems like a Path related issue. You can see here for solutions on how you can alter the path. Alternatively, you can simply fix the issue the following way:
sudo apt-get install libpython3.x-dev
This way you won't need to any changes to environment path manually.

Python imports suddenly failing

I had a few imports I was using for my project. Some of these included packages I downloaded using pip like
import MySQLdb
While others were modules from within my project like
sys.path.append(os.path.join(os.path.dirname(__file__), "../")) .
from util.myFile import get_mysql_connection, execute_query,
These were all working and I was able to run my application on PyCharm. I closed PyCharm and opened it back up to find most of these imports "could not be found". Any help regarding this will be much appreciated. Thanks
Update:
I'm able to run the file from terminal (iTerm) without errors. However, the file still shows red error marks by the imports. Seems like PyCharm isn't recognizing some sort of path

Check the traceback for what version of python is being called.
There could be a mismatch between the version you've imported modules with and the version that runs by default.

Double check what is being used as your project interpreter. This can change the available packages to your current project.
Found in PyCharm by going to Settings -> Project:<'Your-Project'> -> Project Interpreter
Also, did you install MySQLdb in this way? MySQLdb - ModuleNotFoundError

Python yahoo_fin Import Error

So I know this is nearly a duplicate of this ImportError question, but I'm not sure how to use those answers to fix this problem. I installed yahoo-fin package using my conda prompt:
pip install yahoo-fin
So clearly it is installed as Eclipse seems to recognize the package and I can even use cntl-space to autocomplete and F3 to explore the package. However, when I try to run
from yahoo_fin.stock_info import get_data
I get "ImportError: No module named stock_info".
From the SE question above I checked the init.py in the directory and it definitely has the CRLF problem, but even when I use notepad++ to replace "\r\n" with "\n" I still get the same error.
What am I missing?

Are you able to load the package without using Eclipse? I would try running Python from the command line, and then typing:
from yahoo_fin.stock_info import get_data
to see if that still gives you an error. If it still gives you an error, then we know it's not an Eclipse issue. However, if it does work, then it's probably an issue with Eclipse. In that case, I would maybe look at this other post: How To Make Eclipse Pydev Plugin Recognize Newly Installed Python Modules?.
Please let me know if that helps.

How do I handle an UnresolvedImport Eclipse (Python)

When I write import MySQLdb in Eclipse using the PyDev plugin, I get an unresolved import. However, the program runs without error. I can add an annotation to get the error to go away, but what is the right way to handle this?
How can I help Eclipse know that MySQLdb is there?

It sounds like MySQLdb is somewhere on your sys.path, but not on your Eclipse project's PYTHONPATH; in other words, Eclipse thinks you're going to get an import error at runtime because you haven't fully configured it. Google seems to say that you can alter this setting in Window->Preferences->Preferences->PyDev->Python Interpreter to include the path to your MySQLdb module.
For some help figuring out where MySQLdb might be living on your system:
Open an interactive interpreter,
import MySQLdb
If that succeeds, you can get a hint from: print MySQLdb.__file__; it may be the __init__ file in the package that you need to point the path at.

cdleary above provided the reason two years ago, but this may be easier. Basically, one reinstalls the interpreter.
Select Window - > Preferences -> PyDev -> Interpreter - Python
Select the python interpreter in the upper pane
Click on Remove
Click on Auto Config
Agree to everything.
This works on Fedora 17 using the Eclipse 4.2.0 that came with the package management.

Fixed this by doing two things:
1) Added MySQLdb egg to the PYTHONPATH under Window->Preferences->Preferences->PyDev->Python Interpreter.
C:\Python26\Lib\site-packages\MySQL_python-1.2.3c1-py2.6-win32.egg
2) Close and re-open the .py file that had the red x.

Adding the egg works, but the error remains. The solution for that error can be found by adding
##UnresolvedImport
To the import statement, as in:
import web ##UnresolvedImport
Source: http://klaith.wordpress.com/2009/06/12/pydev-unresolved-import-errors/

I once had a similar problem on Windows (never encountered this on Linux though) and I discovered that I had to include the .egg directory of my library to my PYTHONPATH.
For example my PYTHONPATH (Pydev/Interpreter - Python/Libraries) included:
C:\Python26\Lib\site-packages
and I had to add:
C:\Python26\Lib\site-packages\jinja2-2.2.1-py2.6.egg
to use jinja.

This surely works I just tried it with Pmw package. Unzip package in site-packages. Then remove python interpreter from eclipse and then add it again. Your import errors shall go away. also you may want add module to forced builtins. See How do I fix PyDev "Undefined variable from import" errors? and http://pydev.org/manual_101_interpreter.html

I had a similar issue and the following is what I did to solve my issue. I have a Windows 8 Machine, Python 2.7 installed and running my stuff through eclipse.
Some Background:
When I did an easy install it tries to install MySQL-python 1.2.5 which failed with an error: Unable to find vcvarsall.bat. I did an easy_install of pip and tried the pip install which also failed with a similar error. They both reference vcvarsall.bat which is something to do with visual studio, since I don't have visual studio on my machine, it left me looking for a different solution, which I share below.
The Solution:
Reinstall python 2.7.8 from 2.7.8 from https://www.python.org/download this will add any missing registry settings, which is required by the next install.
Install 1.2.4 from http://pypi.python.org/pypi/MySQL-python/1.2.4
After I did both of those installs, I reopened eclipse and got a prompt to update the paths of eclipse which I accepted, after that I was able to query my MySQL db.

import MySQLdb
If this code show error like this:
Unresolved import: MySQLdb
you should add D:\Python27\Lib\site-packages\MySQLdb to your sys.path.
D:\Python27\Lib\site-packages\MySQLdb is this location where you install MySQLdb in your computer disk. After this step, the error will disappear.