Issues with installing python libraries on Windows : CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://conda.anaconda.org/anaconda/win-64

Question

I'd like to install the pymongo library but I'm getting the following error:

    (C:\Users\xxxxxxx\AppData\Local\Continuum\anaconda3) C:\Users\xxxxxxx>
    conda install -c anaconda pymongo

    Fetching package metadata ...
    CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://conda.anaconda.org/a
    naconda/win-64/repodata.json>
    Elapsed: -
    
    An HTTP error occurred when trying to retrieve this URL.
    HTTP errors are often intermittent, and a simple retry will get you on your way.
    
    ConnectTimeout(MaxRetryError("HTTPSConnectionPool(host='conda.anaconda.org', por
    t=443): Max retries exceeded with url: /anaconda/win-64/repodata.json (Caused by
     ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x000
    00000054D6128>, 'Connection to conda.anaconda.org timed out. (connect timeout=9.
    15)'))",),)

Steps taken to resolve:

1. Update C:\Users\\xxxxxxx\.condarc file with the following:

channels:
  - defaults
ssl_verify: false
proxy_servers:
http: http://sproxy.fg.xxx.com:1000
https: https://sproxy.fg.xxx.com:1000

2. (C:\Users\xxxxxxx\AppData\Local\Continuum\anaconda3) C:\Users\xxxxxxx>
    conda config --set ssl_verify False

Additional Info:

(C:\Users\xxxxxxx\AppData\Local\Continuum\anaconda3) C:\Users\xxxxxxx>
conda info

Current conda install:

               platform : win-64
          conda version : 4.3.27
       conda is private : False
      conda-env version : 4.3.27
    conda-build version : 3.0.22
         python version : 3.6.2.final.0
       requests version : 2.18.4
            config file : C:\Users\xxxxxxx\.condarc
             netrc file : None
           offline mode : False
             user-agent : conda/4.3.27 requests/2.18.4 CPython/3.6.2 Windows/7 W
indows/6.1.7601
          administrator : False

A number of posts online simply reinstalled Anaconda, any other options apart from a fresh install?

Solution 1

Execute the following command in the cmd prompt/terminal:

conda config --set ssl_verify no

Solution 2

This works a charm:-

Just copy these:-

1. libcrypto-1_1-x64.dll

2. libssl-1_1-x64.dll

from D:\Anaconda3\Library\bin to D:\Anaconda3\DLLs.

Solution 3

I try to create a virtual env with python 2.7 with anaconda, the base env is python 3.7. I encounter the exactly same problem. It turns out that there isn't such problem with other virtual envs with python 3.7 or 3.6.

This post works perfectly to solve my problem on win7 with anaconda prompt. It basically says you need to add the following directories into your user environment path in windows (go to Start and type in: View Advanced System Settings, then select Environmental Variables: then select Path and click Edit: finally you can click New and add a path):

C:\your_directory_to_anaconda3\Anaconda3\Scripts

C:\your_directory_to_anaconda3\Anaconda3\

C:\your_directory_to_anaconda3\Anaconda3\Library\bin -- This is the directory for openssl

Solution 4

If you added conda to your PATH variables, remove it and use the "Anaconda Prompt". This solved the problem for me.

See: https://github.com/conda/conda/issues/8046#issuecomment-450582208

Solution 5

I faced this issue when I tried to create environment. I solved it by first activating conda base environment by using:

conda activate base

then I created the environment

conda create -n myenv python=3.7

View more solutions

Comments

[Karthick S]

thank you, this is the right fix. It it too tempting to add conda.exe location to path and then try but that causes a lot of trouble. Anaconda Prompt has all the right settings to get conda working.

[Luk164]

Worked for me to, any explanation on what went wrong? Why are these not already present?

[Lixing Liang]

Amazing, it worked for me. I tried turning off ssl_verify, but it didn't work.

[Prasoon Gupta]

Green tick should be on this comment.

[Swapnil]

@Luk164 Idk maybe some error while installing or maybe it'd work fine if we install it on the C drive.

[William]

I also tried the set ssl_verify method above then tried this. This ultimately worked for me.

[Imran Faruqi]

If you add the Library\bin to path variable, you wouldn't need to copy and paste the files

[Kimanthi K.]

I almost gave up. It was around 2 am when I saw this man. It solves everything

[pratyush]

Its not a good idea to unset ssl verification unless you know what you are doing. The other answer works for me for a brand new anaconda installation on windows.

[Laurent]

tried other answers. Only this one worked for me. Thanks.

[Subangkar KrS]

After doing this, removing the existing env and recreating that worked out for me

[CircleOnCircles]

Oct, 2021. This is still working for me.

[Jeremy Weirich]

This was what I needed, none of the other fixes had an impact.

[Anthony Nash]

For Win 11 Pro Insider Preview using PyCharm with Conda, this worked for me.

[brohjoe]

Thank you so much @Swapnil...it took a minute to install and I crossed my fingers but it works like a charm!!! I'm going to set my environment per Imran as well. Thanks so much guys!!! I hope your numbers go up big time!

[mrk]

this is probably only the reason when you have "channels" in your config file

[Mattkwish]

This is what fixed it for me, deleted the folder it installed to, re-ran the installer, checked this box (didnt have it checked prior), error went away.

[DanielBell99]

You absolute babe @Swapnil

[user108569]

that is exactly what anaconda tells you to do in the docs here. they don't explain why.

[Foggy]

This was the only thing that worked for me. I tried re-installing Anaconda, upgrading anaconda, changing my path variable, and moving the DLL's around. This definitely makes me uncomfortable too

[Foggy]

If you navigate to the repo from your browser https://repo.anaconda.com and you receive a warning like NET::ERR_CERT_AUTHORITY_INVALID then this is your best solution.

[mpc-DT]

In my case, the mistake was the file named"condaarc" instead of ".condaarc" (leading "." missing)