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other:python:misc_by_jyp [2021/08/25 12:00] jypeter [Working with paths and filenames] Added more examples |
other:python:misc_by_jyp [2021/08/27 11:56] jypeter Added file name generation section |
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=== Example: getting the full path of the Python used === | === Example: getting the full path of the Python used === | ||
- | <code>>>> import shutil | + | Note: the actual python may be different from the default python! |
- | >>> my_python = shutil.which('python') | + | |
- | >>> my_python | + | <code>$ which python |
- | '/home/share/unix_files/cdat/miniconda3_21-02/envs/cdatm_py3/bin/python'</code> | + | /usr/bin/python |
+ | |||
+ | $ /modfs/modtools/miniconda3//envs/analyse_3.6_test/bin/python | ||
+ | >>> import sys, shutil | ||
+ | >>> shutil.which('python') | ||
+ | '/usr/bin/python' | ||
+ | >>> sys.executable | ||
+ | '/modfs/modtools/miniconda3//envs/analyse_3.6_test/bin/python'</code> | ||
Line 95: | Line 102: | ||
>>> sum(files_sizes) | >>> sum(files_sizes) | ||
64792</code> | 64792</code> | ||
+ | |||
+ | ==== Generating file names ==== | ||
+ | |||
+ | === Name depending on the current date/time === | ||
+ | |||
+ | <code>>>> import time | ||
+ | >>> plot_version = time.strftime('%Y%m%d_%H%M') | ||
+ | >>> f_name = 'test_%s.nc' % (plot_version,) | ||
+ | >>> f_name | ||
+ | 'test_20210827_1334.nc' | ||
+ | </code> | ||
+ | |||
+ | === Temporary file === | ||
+ | |||
+ | <code>>>> import tempfile, os | ||
+ | >>> f_tmp = tempfile.NamedTemporaryFile(mode='w', suffix='.nc', delete=False) | ||
+ | >>> f_tmp | ||
+ | <tempfile._TemporaryFileWrapper object at 0x2b5614743820> | ||
+ | >>> f_tmp.name | ||
+ | '/tmp/tmpi6uk9hre.nc' | ||
+ | >>> f_tmp.close() | ||
+ | >>> os.remove(f_tmp.name)</code> | ||
==== Using command-line arguments ==== | ==== Using command-line arguments ==== | ||