Web Reference: Sorry, I did not install it myself. Python 2.6.6 was already on the system when I created an EC2 instance. Jul 4, 2022 ยท Please supply the command you are running that generates the error messages you posted (e.g., apt-get install python-dev). python-dev is no longer available since Debian 11, Ubuntu 20.10, and any distribution derived from those. Package python-dev is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source
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