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Python: Difference between revisions
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Parallel filesystems such as the ones used on our clusters are very good at reading or writing large chunks of data, but can be bad for intensive use of small files. Launching a software and loading libraries, such as starting | Parallel filesystems such as the ones used on our clusters are very good at reading or writing large chunks of data, but can be bad for intensive use of small files. Launching a software and loading libraries, such as starting Python and loading a virtual environment, can be slow for this reason. | ||
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Currently available wheels are listed on the [[Available Python wheels]] page. You can also run the command <code>avail_wheels</code> on the cluster. | Currently available wheels are listed on the [[Available Python wheels]] page. You can also run the command <code>avail_wheels</code> on the cluster. | ||
By default, it will: | By default, it will: | ||
* only show you the | * only show you the <b>latest version</b> of a specific package (unless versions are given); | ||
* only show you versions that are compatible with the python module (if one loaded) or virtual environment (if activated), otherwise all versions will be shown; | * only show you versions that are compatible with the python module (if one loaded) or virtual environment (if activated), otherwise all versions will be shown; | ||
* only show you versions that are compatible with the CPU architecture that you are currently running on. | * only show you versions that are compatible with the CPU architecture that you are currently running on. | ||
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numpy 1.22.2 cp39 generic | numpy 1.22.2 cp39 generic | ||
}} | }} | ||
The <i>python</i> column | The <i>python</i> column tells us for which version the wheel is available, where <code>cp39</code> stands for <code>cpython 3.9</code>. | ||
==== Requirements file ==== <!--T:81--> | ==== Requirements file ==== <!--T:81--> | ||
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|prompt=(ENV) [name@server ~] | |prompt=(ENV) [name@server ~] | ||
|pip install --no-index --upgrade pip}} | |pip install --no-index --upgrade pip}} | ||
Then | Then rerun your install command. | ||
=== No matching distribution found for X === <!--T:86--> | === No matching distribution found for X === <!--T:86--> | ||
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=== X is not a supported wheel on this platform === <!--T:93--> | === X is not a supported wheel on this platform === <!--T:93--> | ||
When installing a package you may encounter the following error: <code>ERROR: package-3.8.1-cp311-cp311-manylinux_2_28_x86_64.whl is not a supported wheel on this platform.</code> | When installing a package, you may encounter the following error: <code>ERROR: package-3.8.1-cp311-cp311-manylinux_2_28_x86_64.whl is not a supported wheel on this platform.</code> | ||
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