Generic Operating System Services¶
The modules described in this chapter provide interfaces to operating system features that are available on (almost) all operating systems, such as files and a clock. The interfaces are generally modeled after the Unix or C interfaces, but they are available on most other systems as well. Here’s an overview:
os— Miscellaneous operating system interfacesio— Core tools for working with streamstime— Time access and conversionsoptparse— More powerful command line option parser- Background
- Tutorial
- Reference Guide
- Option Callbacks
- Defining a callback option
- How callbacks are called
- Raising errors in a callback
- Callback example 1: trivial callback
- Callback example 2: check option order
- Callback example 3: check option order (generalized)
- Callback example 4: check arbitrary condition
- Callback example 5: fixed arguments
- Callback example 6: variable arguments
- Extending
optparse
getopt— Parser for command line optionslogging— Logging facility for Python- Logging tutorial
- Logging Levels
- Useful Handlers
- Module-Level Functions
- Logger Objects
- Basic example
- Logging to multiple destinations
- Adding contextual information to your logging output
- Sending and receiving logging events across a network
- Handler Objects
- Formatter Objects
- Filter Objects
- LogRecord Objects
- LoggerAdapter Objects
- Thread Safety
- Configuration
- More examples
getpass— Portable password inputcurses— Terminal handling for character-cell displayscurses.textpad— Text input widget for curses programscurses.wrapper— Terminal handler for curses programscurses.ascii— Utilities for ASCII characterscurses.panel— A panel stack extension for curses.platform— Access to underlying platform’s identifying data.errno— Standard errno system symbolsctypes— A foreign function library for Python.- ctypes tutorial
- Loading dynamic link libraries
- Accessing functions from loaded dlls
- Calling functions
- Fundamental data types
- Calling functions, continued
- Calling functions with your own custom data types
- Specifying the required argument types (function prototypes)
- Return types
- Passing pointers (or: passing parameters by reference)
- Structures and unions
- Structure/union alignment and byte order
- Bit fields in structures and unions
- Arrays
- Pointers
- Type conversions
- Incomplete Types
- Callback functions
- Accessing values exported from dlls
- Surprises
- Variable-sized data types
- ctypes reference
- ctypes tutorial