python2.7 pip install EnvironmentError Illega byte sequence

Question

I have an error at pip install pyinstaller

Cmd quote:

Microsoft Windows Version 6.3.9600 20 13 Microsoft Corporation. All rights reserved.

C:\\WINDOWS\\system32>pip install pyinstaller Collecting pyinstaller
Downloading https://files.pythonhosted.org/packages/3c/86/909a8c35c5471919b3854c01f43843d9b5aed0e9948b63e560010f7f3429/PyInstaller-3.3.1.tar.gz (3.5MB)

1% |Could not install packages due to an EnvironmentError: [Errno 42] Illega l byte sequence

I use python2.7 and Windows8:

Python 2.7.12 |Anaconda 4.2.0 (64-bit)| (default, Jun 29 2016, 11:07:13) [MSC v. 1500 64 bit (AMD64)] on win32

I tried to check what cause the problem all across the internet without success.

• it happend to me also at pip install py2exe command
• it doesn't happand at simple package like pip install clock (simple clock package from githab;just to check pip working)

I wanted to make a virtual enviroment but pip install virtualenv gave me the same problem. I think that finally I succeed to install virtualenv by the command:

pip install https://github.com/pypa/virtualenv/tarball/master

(but I not sure because all of my tries)

• I created new environment but still I couldn't install pyinstaller pack and I got the same error
• on the new env. I get the same EnvironmentError at pip install clock command (the simple pack, just to check pip).

So maybe something in communication from pip to my computer isn't correct.. maybe my programs need update? I updated pip to last version. What do you recommend?

Answer 1

I put command in the new environment that I made:

pip install --upgrade pip==10.0.1

and I installed the older version of pip

that way I successfully installed PyInstaller pack!!

for everyone know :)