7

When trying to install some packages using pip, I encountered an error.

Even switching the environments of Python, the same error came up. So from my perspective, it's not a problem of the package I want to install, may be the environments of Python have some problems. Any one can help me?

Environments:

  • Windows 10
  • Anaconda 4.5.2
  • Python3.6
  • pip 10.0.1

Here is the message from the command:

C:\WINDOWS\system32>activate py36_tfg

(py36_tfg) C:\WINDOWS\system32>deactivate
Fatal Python error: Py_Initialize: can't initialize sys standard streams
LookupError: unknown encoding: 65001

Current thread 0x00003a78 (most recent call first):

(py36_tfg) C:\WINDOWS\system32>pip --version
pip 10.0.1 from c:\devtools\anaconda3\envs\py36_tfg\lib\site-packages\pip (python 3.6)

(py36_tfg) C:\WINDOWS\system32>pip install cchainercv
Collecting cchainercv
  Could not find a version that satisfies the requirement cchainercv (from versions: )
No matching distribution found for cchainercv

(py36_tfg) C:\WINDOWS\system32>pip install chainercv
Collecting chainercv
  Using cached https://files.pythonhosted.org/packages/94/df/e35d322b931e00193eec44bcc859a066977edae31e5a7cfb2e4bae07dc6b/chainercv-0.10.0.tar.gz
    Complete output from command python setup.py egg_info:
    Fatal Python error: Py_Initialize: can't initialize sys standard streams
    LookupError: unknown encoding: 65001

    Current thread 0x00000a90 (most recent call first):

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 3221226505 in C:\Users\Admin\AppData\Local\Temp\pip-install-r06qb7v_\chainercv\
giker
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3 Answers3

9

Problem solved.

It is a problem of system encoding (Windows).

Change the System Encoding can solve the problem.

Reference:

giker
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8

try this: set PYTHONIOENCODING=UTF-8

Yuxin ji
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0

Open control panel and Go to "region" settings in windows (refer image 1) => Go to Administrative tab => Change system locale => uncheck the check box "Unicode-UTF 8 for windows language support"

click ok and restart your system.

enter image description here

enter image description here

Sunny
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