Python-Teaching: Difference between revisions
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=== Version === | === Version === | ||
3.6.4 | |||
=== Author / Distributor === | === Author / Distributor === | ||
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=== Running Program === | === Running Program === | ||
The last version of this application is at /usr/local/apps/eb/Python/ | The last version of this application is at /usr/local/apps/eb/Python/3.6.4-foss-2018a | ||
To use this version, please load the module with | To use this version, please load the module with | ||
<pre class="gscript"> | <pre class="gscript"> | ||
ml Python/ | ml Python/3.6.4-foss-2018a | ||
</pre> | </pre> | ||
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<nowiki>#</nowiki>SBATCH --time=<u>08:00:00</u><br> | <nowiki>#</nowiki>SBATCH --time=<u>08:00:00</u><br> | ||
<nowiki>#</nowiki>SBATCH --output=Python.%j.out<br> | <nowiki>#</nowiki>SBATCH --output=Python.%j.out<br> | ||
<nowiki>#</nowiki>SBATCH --error=Python.%j.err<br> | |||
cd $SLURM_SUBMIT_DIR<br> | cd $SLURM_SUBMIT_DIR<br> | ||
ml Python/ | ml Python/3.6.4-foss-2018a<br> | ||
python <u>[options]</u><br> | python <u>[options]</u><br> | ||
</div> | </div> | ||
| Line 58: | Line 59: | ||
<pre class="gcommand"> | <pre class="gcommand"> | ||
ml Python/ | ml Python/3.6.4-foss-2018a | ||
python -h | |||
usage: python [option] ... [-c cmd | -m mod | file | -] [arg] ... | usage: python [option] ... [-c cmd | -m mod | file | -] [arg] ... | ||
Options and arguments (and corresponding environment variables): | Options and arguments (and corresponding environment variables): | ||
-B : don't write . | -b : issue warnings about str(bytes_instance), str(bytearray_instance) | ||
and comparing bytes/bytearray with str. (-bb: issue errors) | |||
-B : don't write .pyc files on import; also PYTHONDONTWRITEBYTECODE=x | |||
-c cmd : program passed in as string (terminates option list) | -c cmd : program passed in as string (terminates option list) | ||
-d : debug output from parser; also PYTHONDEBUG=x | -d : debug output from parser; also PYTHONDEBUG=x | ||
| Line 69: | Line 72: | ||
-i : inspect interactively after running script; forces a prompt even | -i : inspect interactively after running script; forces a prompt even | ||
if stdin does not appear to be a terminal; also PYTHONINSPECT=x | if stdin does not appear to be a terminal; also PYTHONINSPECT=x | ||
-I : isolate Python from the user's environment (implies -E and -s) | |||
-m mod : run library module as a script (terminates option list) | -m mod : run library module as a script (terminates option list) | ||
-O : optimize generated bytecode slightly; also PYTHONOPTIMIZE=x | -O : optimize generated bytecode slightly; also PYTHONOPTIMIZE=x | ||
-OO : remove doc-strings in addition to the -O optimizations | -OO : remove doc-strings in addition to the -O optimizations | ||
- | -q : don't print version and copyright messages on interactive startup | ||
-s : don't add user site directory to sys.path; also PYTHONNOUSERSITE | -s : don't add user site directory to sys.path; also PYTHONNOUSERSITE | ||
-S : don't imply 'import site' on initialization | -S : don't imply 'import site' on initialization | ||
-u : force the binary I/O layers of stdout and stderr to be unbuffered; | |||
-u : | stdin is always buffered; text I/O layer will be line-buffered; | ||
also PYTHONUNBUFFERED=x | |||
-v : verbose (trace import statements); also PYTHONVERBOSE=x | -v : verbose (trace import statements); also PYTHONVERBOSE=x | ||
can be supplied multiple times to increase verbosity | can be supplied multiple times to increase verbosity | ||
-V : print the Python version number and exit (also --version) | -V : print the Python version number and exit (also --version) | ||
when given twice, print more information about the build | |||
-W arg : warning control; arg is action:message:category:module:lineno | -W arg : warning control; arg is action:message:category:module:lineno | ||
also PYTHONWARNINGS=arg | also PYTHONWARNINGS=arg | ||
-x : skip first line of source, allowing use of non-Unix forms of #!cmd | -x : skip first line of source, allowing use of non-Unix forms of #!cmd | ||
- | -X opt : set implementation-specific option | ||
file : program read from script file | file : program read from script file | ||
- : program read from stdin (default; interactive mode if a tty) | - : program read from stdin (default; interactive mode if a tty) | ||
| Line 97: | Line 99: | ||
default module search path. The result is sys.path. | default module search path. The result is sys.path. | ||
PYTHONHOME : alternate <prefix> directory (or <prefix>:<exec_prefix>). | PYTHONHOME : alternate <prefix> directory (or <prefix>:<exec_prefix>). | ||
The default module search path uses <prefix>/pythonX.X. | The default module search path uses <prefix>/lib/pythonX.X. | ||
PYTHONCASEOK : ignore case in 'import' statements (Windows). | PYTHONCASEOK : ignore case in 'import' statements (Windows). | ||
PYTHONIOENCODING: Encoding[:errors] used for stdin/stdout/stderr. | PYTHONIOENCODING: Encoding[:errors] used for stdin/stdout/stderr. | ||
PYTHONHASHSEED: if this variable is set to 'random', | PYTHONFAULTHANDLER: dump the Python traceback on fatal errors. | ||
PYTHONHASHSEED: if this variable is set to 'random', a random value is used | |||
to seed the hashes of str, bytes and datetime objects. It can also be | |||
set to an integer in the range [0,4294967295] to get hash values with a | |||
predictable seed. | |||
PYTHONMALLOC: set the Python memory allocators and/or install debug hooks | |||
on Python memory allocators. Use PYTHONMALLOC=debug to install debug | |||
hooks. | |||
</pre> | </pre> | ||
Revision as of 14:06, 10 August 2018
Category
Programming
Program On
Teaching
Version
3.6.4
Author / Distributor
Description
"Python is a programming language that lets you work more quickly and integrate your systems more effectively." More details are at Python
Running Program
The last version of this application is at /usr/local/apps/eb/Python/3.6.4-foss-2018a
To use this version, please load the module with
ml Python/3.6.4-foss-2018a
Here is an example of a shell script, sub.sh, to run on the batch queue:
#!/bin/bash
#SBATCH --job-name=j_Python
#SBATCH --partition=batch
#SBATCH --mail-type=ALL
#SBATCH --mail-user=username@uga.edu
#SBATCH --ntasks=1
#SBATCH --mem=10gb
#SBATCH --time=08:00:00
#SBATCH --output=Python.%j.out
#SBATCH --error=Python.%j.err
cd $SLURM_SUBMIT_DIR
ml Python/3.6.4-foss-2018a
python [options]
In the real submission script, at least all the above underlined values need to be reviewed or to be replaced by the proper values.
Please refer to Running_Jobs_on_the_teaching_cluster, Run X window Jobs and Run interactive Jobs for more details of running jobs at Teaching cluster.
Here is an example of job submission command:
sbatch ./sub.sh
Documentation
ml Python/3.6.4-foss-2018a
python -h
usage: python [option] ... [-c cmd | -m mod | file | -] [arg] ...
Options and arguments (and corresponding environment variables):
-b : issue warnings about str(bytes_instance), str(bytearray_instance)
and comparing bytes/bytearray with str. (-bb: issue errors)
-B : don't write .pyc files on import; also PYTHONDONTWRITEBYTECODE=x
-c cmd : program passed in as string (terminates option list)
-d : debug output from parser; also PYTHONDEBUG=x
-E : ignore PYTHON* environment variables (such as PYTHONPATH)
-h : print this help message and exit (also --help)
-i : inspect interactively after running script; forces a prompt even
if stdin does not appear to be a terminal; also PYTHONINSPECT=x
-I : isolate Python from the user's environment (implies -E and -s)
-m mod : run library module as a script (terminates option list)
-O : optimize generated bytecode slightly; also PYTHONOPTIMIZE=x
-OO : remove doc-strings in addition to the -O optimizations
-q : don't print version and copyright messages on interactive startup
-s : don't add user site directory to sys.path; also PYTHONNOUSERSITE
-S : don't imply 'import site' on initialization
-u : force the binary I/O layers of stdout and stderr to be unbuffered;
stdin is always buffered; text I/O layer will be line-buffered;
also PYTHONUNBUFFERED=x
-v : verbose (trace import statements); also PYTHONVERBOSE=x
can be supplied multiple times to increase verbosity
-V : print the Python version number and exit (also --version)
when given twice, print more information about the build
-W arg : warning control; arg is action:message:category:module:lineno
also PYTHONWARNINGS=arg
-x : skip first line of source, allowing use of non-Unix forms of #!cmd
-X opt : set implementation-specific option
file : program read from script file
- : program read from stdin (default; interactive mode if a tty)
arg ...: arguments passed to program in sys.argv[1:]
Other environment variables:
PYTHONSTARTUP: file executed on interactive startup (no default)
PYTHONPATH : ':'-separated list of directories prefixed to the
default module search path. The result is sys.path.
PYTHONHOME : alternate <prefix> directory (or <prefix>:<exec_prefix>).
The default module search path uses <prefix>/lib/pythonX.X.
PYTHONCASEOK : ignore case in 'import' statements (Windows).
PYTHONIOENCODING: Encoding[:errors] used for stdin/stdout/stderr.
PYTHONFAULTHANDLER: dump the Python traceback on fatal errors.
PYTHONHASHSEED: if this variable is set to 'random', a random value is used
to seed the hashes of str, bytes and datetime objects. It can also be
set to an integer in the range [0,4294967295] to get hash values with a
predictable seed.
PYTHONMALLOC: set the Python memory allocators and/or install debug hooks
on Python memory allocators. Use PYTHONMALLOC=debug to install debug
hooks.
Installation
Source code is obtained from Python
System
64-bit Linux