Python-Teaching: Difference between revisions

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=== Version ===
=== Version ===
3.5.2
2.7.14
   
   
=== 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/3.5.2-foss-2016b
The last version of this application is at /usr/local/apps/eb/Python/2.7.14-foss-2016b


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/3.5.2-foss-2016b  
ml Python/2.7.14-foss-2016b  
</pre>  
</pre>  


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cd $SLURM_SUBMIT_DIR<br>
cd $SLURM_SUBMIT_DIR<br>
ml Python/3.5.2-foss-2016b<br>     
ml Python/2.7.14-foss-2016b<br>     
python <u>[options]</u><br>   
python <u>[options]</u><br>   
</div>
</div>
Line 58: Line 58:
   
   
<pre  class="gcommand">
<pre  class="gcommand">
ml Python/3.5.2-foss-2016b  
ml Python/2.7.14-foss-2016b  
python python -h
python 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    : issue warnings about str(bytes_instance), str(bytearray_instance)
-b    : issue warnings about comparing bytearray with unicode
        and comparing bytes/bytearray with str. (-bb: issue errors)
        (-bb: issue errors)
-B    : don't write .py[co] files on import; also PYTHONDONTWRITEBYTECODE=x
-B    : don't write .py[co] 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)
Line 71: Line 71:
-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
-R     : use a pseudo-random salt to make hash() values of various types be
        unpredictable between separate invocations of the interpreter, as
        a defense against denial-of-service attacks
-Q arg : division options: -Qold (default), -Qwarn, -Qwarnall, -Qnew
-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    : unbuffered binary stdout and stderr, stdin always buffered;
-t    : issue warnings about inconsistent tab usage (-tt: issue errors)
        also PYTHONUNBUFFERED=x
-u    : unbuffered binary stdout and stderr; also PYTHONUNBUFFERED=x
         see man page for details on internal buffering relating to '-u'
         see man page for details on internal buffering relating to '-u'
-v    : verbose (trace import statements); also PYTHONVERBOSE=x
-v    : verbose (trace import statements); also PYTHONVERBOSE=x
Line 87: Line 89:
         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
-3    : warn about Python 3.x incompatibilities that 2to3 cannot trivially fix
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 100: Line 102:
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.
PYTHONFAULTHANDLER: dump the Python traceback on fatal errors.
PYTHONHASHSEED: if this variable is set to 'random', the effect is the same
PYTHONHASHSEED: if this variable is set to 'random', a random value is used
  as specifying the -R option: a random value is used to seed the hashes of
  to seed the hashes of str, bytes and datetime objects.  It can also be
  str, bytes and datetime objects.  It can also be set to an integer
  set to an integer in the range [0,4294967295] to get hash values with a
  in the range [0,4294967295] to get hash values with a predictable seed.
  predictable seed.


</pre>
</pre>

Revision as of 12:45, 10 August 2018

Category

Programming

Program On

Teaching

Version

2.7.14

Author / Distributor

Python

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/2.7.14-foss-2016b

To use this version, please load the module with 

ml Python/2.7.14-foss-2016b

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

cd $SLURM_SUBMIT_DIR
ml Python/2.7.14-foss-2016b
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/2.7.14-foss-2016b 
python python -h
usage: python [option] ... [-c cmd | -m mod | file | -] [arg] ...
Options and arguments (and corresponding environment variables):
-b     : issue warnings about comparing bytearray with unicode
         (-bb: issue errors)
-B     : don't write .py[co] 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
-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
-R     : use a pseudo-random salt to make hash() values of various types be
         unpredictable between separate invocations of the interpreter, as
         a defense against denial-of-service attacks
-Q arg : division options: -Qold (default), -Qwarn, -Qwarnall, -Qnew
-s     : don't add user site directory to sys.path; also PYTHONNOUSERSITE
-S     : don't imply 'import site' on initialization
-t     : issue warnings about inconsistent tab usage (-tt: issue errors)
-u     : unbuffered binary stdout and stderr; also PYTHONUNBUFFERED=x
         see man page for details on internal buffering relating to '-u'
-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)
-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
-3     : warn about Python 3.x incompatibilities that 2to3 cannot trivially fix
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>/pythonX.X.
PYTHONCASEOK : ignore case in 'import' statements (Windows).
PYTHONIOENCODING: Encoding[:errors] used for stdin/stdout/stderr.
PYTHONHASHSEED: if this variable is set to 'random', the effect is the same
   as specifying the -R option: 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.

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Installation

Source code is obtained from Python

System

64-bit Linux

Retrieved from "https://wiki.gacrc.uga.edu/index.php?title=Python-Teaching&oldid=13184"