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How to install matplotlib? - broccolee - Mar-14-2019 Hi, I get the following error when I tried to install matplotlib: /* ----------------------------------------------------------------------- Installing collected packages: numpy, pyparsing, matplotlib Found existing installation: numpy 1.5.1 Cannot uninstall 'numpy'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall. ----- Failed to install 'matplotlib' ----- ---------------*/ How can I troubleshoot this? Thanks. RE: How to install matplotlib? - snippsat - Mar-14-2019 pip uninstall numpyThen: pip install matplotlibIf i do a quick with virtual environment,venv is now build into Python. Then do pip freeze after install. (install_env) C:\code\install_env λ pip freeze cycler==0.10.0 kiwisolver==1.0.1 matplotlib==3.0.3 numpy==1.16.2 pyparsing==2.3.1 python-dateutil==2.8.0 six==1.12.0You see that pip install matplotlib automatic install a never version that numpy 1.5.
RE: How to install matplotlib? - broccolee - Mar-15-2019 Hi Snippsat, I'm a new user and I'm not sure how to reply to you. I tried uninstalling it from the command prompt, it failed to uninstall. I just found out today I have Python 2.7.9 (64-bit) on my system, which I never used. I tried uninstalling that too, but windows says : /*--------------- There is a problem with this Windows Installer package. A program is required for this install to complete could not be run. Contact your support personnel or package vendor. */ So then I tried using python in visual studio 2017: Python 3.6. Can't upgrade or uninstall 'numpy' from there either... Here's the error output: /*-------------------------------- ----- Uninstalling 'numpy' ----- Cannot uninstall 'numpy'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall. ----- Error while uninstalling 'numpy' ----- 'numpy' may not have been uninstalled completely. ----- Installing 'numpy' ----- Collecting numpy==1.16.2 Using cached https://files.pythonhosted.org/packages/ed/29/d97b6252591da5f8add0d25eecda296ea72729a0aad7998edba1981b47c8/numpy-1.16.2-cp36-cp36m-win_amd64.whl Installing collected packages: numpy Found existing installation: numpy 1.5.1 Cannot uninstall 'numpy'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall. ----- Failed to install 'numpy' ----- What should I do? Thanks. RE: How to install matplotlib? - snippsat - Mar-15-2019 (Mar-15-2019, 02:03 AM)broccolee Wrote: What should I do?Follow this and install 3.7 Python 3.6/3.7 and pip installation under Windows Make sure that Path point to 3.7,see Fixing Path if needed Then it look like this from cmd .Microsoft Windows [Version 10.0.17134.648] (c) 2018 Microsoft Corporation. Med enerett. C:\WINDOWS\system32>cd\ # Check that point to 3.7 C:\>python -V Python 3.7.2 # Check pip point to 3.7 C:\>pip -V pip 19.0.3 from c:\python37\lib\site-packages\pip (python 3.7) C:\>pip uninstall numpy Uninstalling numpy-1.16.2: Would remove: c:\python37\lib\site-packages\numpy-1.16.2.dist-info\* c:\python37\lib\site-packages\numpy\* c:\python37\scripts\f2py.exe Proceed (y/n)? y Successfully uninstalled numpy-1.16.2 C:\>pip uninstall numpy Skipping numpy as it is not installed. # You do this,just showed how uninstall shall work C:\>pip install matplotlib Quote:So then I tried using python in visual studio 2017: Python 3.6.Don't mess with visual studio 2017 use VS Code it's much more geared towards Python. VS Code from start |