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This question is for Python 3.5.2, using Anaconda 4.3.0 on Windows 10 (64-bit)

When I try to install packages with pip I get this error:

Command "python setup.py egg_info" failed with error code 1 in C:\Users\HMGSYS\AppData\Local\Temp\pip-build-xit1wtvr\shapely\
Based on other SO answers, I tried to  upgrade setuptools:
pip install --upgrade setuptools
But I get this error:
FileNotFoundError: [WinError 2] The system cannot find the file specified: 'C:\\Users\\HMGSYS\\Anaconda3\\lib\\site-packages\\setuptools-27.2.0-py3.5.egg'
However, if I try to install setuptools:
python -m pip install -U pip setuptools
It tells me that all packages are up to date, including setuptools:
Requirement already up-to-date: setuptools in c:\users\hmgsys\anaconda3\lib\site-packages
Also, when I look in lib\site-packages, I see a folder for setuptools and another for setuptools-34.3.2.dist-info.
What should I try next? Why is setuptools looking for version 27.2.0 and ignoring the more recent versions?
EDIT:
I downloaded the specific version of setuptools that the system was looking for and the error from 'pip install --upgrade setuptools' disappeared. However, I'm still getting the first 'egg_info' error. I've also installed ez_setup, which had no effect.
                None of the proposed answers worked for me so I ended up wiping Windows and reinstalling Windows 7 (for this and other reasons). I don't recommend this, but it did fix the problem.
– jss367
                Aug 29, 2017 at 11:23
        
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