Cache entry deserialization failed, entry ignored
Question:
C:Usersdeypr>pip3 install sklearn
Collecting sklearn
Cache entry deserialization failed, entry ignored
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Could not fetch URL https://pypi.python.org/simple/sklearn/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /simple/sklearn/ (Caused by SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)) - skipping
Could not find a version that satisfies the requirement sklearn (from versions: )
No matching distribution found for sklearn
I am getting this error whenever trying to install any python3 package.
-
What could be the possible reasons?
-
How to fix it ?
Answers:
It was a network issue. It worked totally fine when I moved to a different network.
Regarding the error/warning message in the question’s title:
Cache entry deserialization failed, entry ignored
You can fix it by removing the pip cache, e.g. on Ubuntu:
rm -rf ~/.cache/pip
Just run the pip command with –no-cache-dir.
For example:
>>> pip install keras --no-cache-dir
Another reason might be that you have a lower python version. For instance, you install tensorflow
on python 3.6.0 and you’ll get Cache entry deserialization failed, entry ignored
for many libraries that come with tensorflow
.
But if you use python 3.8.0, all is good.
There are two methods
one removes cache
sudo rm -rf ~/.cache/pip
Other install package with –no-cachw-dir
pip install --no-cache-dir Package_Name
if it is not solved restart your working machine
C:Usersdeypr>pip3 install sklearn
Collecting sklearn
Cache entry deserialization failed, entry ignored
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)': /simple/sklearn/
Could not fetch URL https://pypi.python.org/simple/sklearn/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /simple/sklearn/ (Caused by SSLError(SSLError(1, '[SSL: TLSV1_ALERT_ACCESS_DENIED] tlsv1 alert access denied (_ssl.c:777)'),)) - skipping
Could not find a version that satisfies the requirement sklearn (from versions: )
No matching distribution found for sklearn
I am getting this error whenever trying to install any python3 package.
-
What could be the possible reasons?
-
How to fix it ?
It was a network issue. It worked totally fine when I moved to a different network.
Regarding the error/warning message in the question’s title:
Cache entry deserialization failed, entry ignored
You can fix it by removing the pip cache, e.g. on Ubuntu:
rm -rf ~/.cache/pip
Just run the pip command with –no-cache-dir.
For example:
>>> pip install keras --no-cache-dir
Another reason might be that you have a lower python version. For instance, you install tensorflow
on python 3.6.0 and you’ll get Cache entry deserialization failed, entry ignored
for many libraries that come with tensorflow
.
But if you use python 3.8.0, all is good.
There are two methods
one removes cache
sudo rm -rf ~/.cache/pip
Other install package with –no-cachw-dir
pip install --no-cache-dir Package_Name
if it is not solved restart your working machine