PyCharm Error Loading Package List

First of all, I think you should use Default Preferences in File to install packages. Second, you should check "Manage Repositories" if there's any unavailable source.


Update PyCharm January 2020 Build

If you are behind a proxy then

  • Go to File->Settings search for proxy in the settings dialog
  • Check Auto-Detect Proxy Settings:

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I got the same problem and solution was that I got some other repositories added to repositories manager. So, make sure that you don't have anything extra then

https://pypi.python.org/simple at Repositories

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I am behind a corporate firewall and had this problem. All I had to do was go to Settings/Appearance and Behavior/System Settings/HTTP Proxy and check Auto-detect proxy settings and it worked.