CondaHTTPError: HTTP 000 CONNECTION FAILED

[kenodegard]

Summary

This is a catch-all error that is very unhelpful and very hard to diagnose (although there are a small handful of cases that typically causes it). Collecting reported issues to see if we can make a plan.

Acceptance Criteria

In order for this issue to be considered completed, the following must be true:

• Users no longer see a HTTP 000 message and actually see an error that better reflects what is actually happening (e.g. SSL error or TCP connection error)

Linked Issues & PRs

HTTP 000

• CondaHTTPError #11272
• Unable to fetch/install/update any packages - CondaHTTPError: HTTP 000 CONNECTION FAILED #11126
• Conda on windows cannot update when using VPN #11082
• Conda config not using ssl_verify value shown in 'conda config --show' #11006
• Where is the zoss-appdev/noarch directory? #10711
• conda update to 4.10.0 leads to http error #10612
• Conda 4.5.11/Linux-64 SSLError(SSLError("Can't connect to HTTPS URL because the SSL module is not available.",),) #10311
• [Resolved] MacOS CondaHTTPError: HTTP 000 CONNECTION FAILED #10291
• Collecting package metadata (current_repodata.json): failed CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://repo.anaconda.com/pkgs/main/win-64/current_repodata.json> Elapsed: - #10288
• Package installing problem HTTP error #10184
• Issue while installing any package. #10170
• CondaHTTPError: HTTP 000 CONNECTION FAILED on Linux #10146
• CondaHTTPError: HTTP 000 CONNECTION FAILED on Mac OS X #10111
• Ubuntu 20.04: CondaHTTPError: HTTP 000 CONNECTION FAILED #9948
• CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://repo.anaconda.com/pkgs/main/win-64/current_repodata.json> Elapsed: - #9746
• "conda update" failed immediately after install #9656
• CondaHTTPError: HTTP 000 CONNECTION FAILED #9555
• conda unable to access servers after installing packages #9370
• More SSL Issues. Manually updating Cert fix. #8945
• Install Anaconda 3.7 and update failed #8656
• Test and report on state of conda with proxy servers #5220
• [Solved] conda create | CondaHTTPError: HTTP 000 CONNECTION FAILED for url  #11499
• CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://repo.anaconda.com/pkgs/main/linux-aarch64/current_repodata.json> #11538

Fixes

• Separate SSLError from HTTPError #11564

[jezdez]

Let's stop using HTTP 000 errors as a way to tell users that something didn't work out during networking/IO.

[kenodegard]

conda/conda/core/subdir_data.py

Line 722 in f5b9e86

except (ConnectionError, HTTPError, SSLError) as e:

[biologyzhangbo]

I provid a solution to this issue, but it only works in mainland China.
First, delete the line containing "defaults" in the channels. Note that you should delete the entire line.
Next, replace all instances of "https" with "http" in the Tsinghua channel URLs.
Then you will find that your Conda can work normally.