Python packages hash not matching whilst installing using pip

Question

I am using pip to install all my python packages but get error as shown in the trace below. What is the problem and how can I solve it?

usr@comp:~$ pip insta         


        

Answer 1

I had a similar issue for a different module. It was caused by network failure. My fix was nothing complex but another attempt at installing it and it worked.

Answer 2

I got the error during installing panads

You need to remove the cache and reinstall .

pip install --no-cache-dir flask

Answer 3

The solution may be made apparent by simply verifying the specified package's published hash with your calculated hash of the downloaded file.

If they match - then the pip install might have corrupted the download. If they don't match - then either the hash was not correctly published when the package was published - or - whomever tampered with the download file missed updating the md5 hash.

Be thankful that pip has proper download hygiene. A vast majority of computer users never compare hashes of the software they download and install.

Answer 4

You need to upgrade your pip into the newer version:

Using this command:

python -m pip install -upgrade pip

for Mac/Linux operating system and use

python -m pip install --upgrade tensorflow

for Windows to update your pip. Then run your command

 pip install flask

Answer 5

Looks like a cache problem, the cached package is different from REQUIREMENTS.

Perhaps caused by last updates interruption.

I did this which fixed my problem:

rm ~/.cache/pip -rf

Answer 6

There is a similar problem (Why does pip fail with bad md5 hash for package?) from 2013 the solution that I tried that worked for me is this:

sudo pip install --no-cache-dir flask

given by attolee