<h4id="org96c1188">Getting the list of installed packages and their version</h4>
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This topic is discussed on <ahref="https://stackoverflow.com/questions/20180543/how-to-check-version-of-python-modules">StackOverflow</a>. When using <code>pip</code> (the Python
This topic is discussed on <ahref="https://stackoverflow.com/questions/20180543/how-to-check-version-of-python-modules">StackOverflow</a>. When using <code>pip</code> (the Python
package installer) within a shell command, it is easy to query the
package installer) within a shell command, it is easy to query the
<h4id="org1110f15">Installing a new package or a specific version</h4>
<h4id="org9e3380b">Installing a new package or a specific version</h4>
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This section is mostly a cut and paste from the <ahref="https://support.rstudio.com/hc/en-us/articles/219949047-Installing-older-versions-of-packages">recent post by Ian
This section is mostly a cut and paste from the <ahref="https://support.rstudio.com/hc/en-us/articles/219949047-Installing-older-versions-of-packages">recent post by Ian
Pylvainen</a> on this topic. It comprises a very clear explanation of how
Pylvainen</a> on this topic. It comprises a very clear explanation of how
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<listyle="margin-bottom:0;"><aid="orgdf03a57"></a>Installing a pre-compiled version<br/>
<listyle="margin-bottom:0;"><aid="org1d1770e"></a>Installing a pre-compiled version<br/>
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If you're on a Debian or a Ubuntu system, it may be difficult to
If you're on a Debian or a Ubuntu system, it may be difficult to
access a specific version without breaking your system. So unless you
access a specific version without breaking your system. So unless you