Das Modul »`slr`«

slr.py
"""
Stefan Ram's utilities module.

Version: 2020-02-02T01:11:29+01:00.

This module contains some utilties by Stefan Ram.

Mathematical Functions
----------------------

==================  ==================================================
Function            Description
==================  ==================================================
sign                the sign (signum) of the argument as -1, 0, or +1
==================  ==================================================

Exceptions
----------

No exception is defined.
"""

import subprocess
import sys
import os.path
import inspect
import datetime
import os
import tempfile

def stamp():
    return datetime.datetime.now().replace( microsecond=0 ).isoformat( 'T' )

def caller_name():
    return inspect.currentframe().f_back.f_back.f_code.co_name

class default_context_class:
    def __init__( __self__ ):
        pass
    def report( __self__, *s, **x ):
        """report, in a somewhat verbose manner, what is happening."""
        print( ':'+ caller_name() + ' ' + stamp()+ ":report:", *s, **x )
    def debug( __self__, *s, **x ):
        print( ':'+ caller_name() + ' ' + stamp()+ ":debug:", *s, **x )
    def error( __self__, *s, **x ):
        print( ':'+ caller_name() + ' ' + stamp()+ ":error:", *s, **x )

default_context = default_context_class()

def mswin_execute_command( *args, context=default_context ):
    print(args)
    batch_file = tempfile.NamedTemporaryFile( 'wb', suffix='.cmd', delete=False, dir='.' )
    batch_file.write( b"@chcp 65001 > nul\r\n" )
    batch_file.write( b"@" )
    command = subprocess.list2cmdline( args ).encode( "utf-8" )
    batch_file.write( command )
    batch_file.close()
    try:
        context.report( f'EXECUTING {command}' )
        with subprocess.Popen \
        ( 'cmd.exe /c ' + batch_file.name,
          stdout=subprocess.PIPE, 
          stderr=subprocess.STDOUT ) as p:
              for line in p.stdout:
                  print( line.decode( 'utf-8' ), end='' )
        context.report( 'returncode = ', p.returncode )
    finally:
        os.remove( batch_file.name )
    return p.returncode

mswin_execute_command( "dir" )

def mswin_install_python_package( name ):
    '''
    e.g., pywin32
    '''
    mswin_execute_command( sys.executable, '-m', 'pip', 'install', name, '--force-reinstall' )

def execute_pywin32_postinstall(x):
    """# im scripts folder aufrufen:"""
    execute_os_command( sys.executable, os.path.dirname(sys.executable)+r'\Scripts\pywin32_postinstall.py', '-install' )
    print( 'You now need to restart your Python interpreter!' )
Das Modul »slr«

Das Modul »`slr`«
