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pager 1.3

Terminal/console pager module for Python

Latest Version: 3.3

Python module to page output to the screen, read keys and get console dimensions.

It was meant to be included in standard library http://bugs.python.org/issue8408

Author: anatoly techtonik <techtonik@gmail.com>
License: Public Domain (or MIT if a license is required)

Demo

# this runs manual tests that are also a showcase of
# module capabilities

python -m pager

Status

1.3 (stable)
  • Windows: Python 3 requires getwch()
  • Windows: fix ENTER LEFT UP RIGHT DOWN ESC key codes
1.2 (stable)
  • add names for ENTER LEFT UP RIGHT DOWN ESC keys
  • manual tests for getch() (fixes bug #4)
  • dumpkey() helper function to get hex dump of a value returned by getch()
1.1 (stable)
  • Python 3 compatibility
  • echo() helper function for unbuffered output (in Py3 output doesn't appear immediately on screen unless it ends with newline)
1.0 (stable)
  • getch() now returns list of chars for special keys (fixes bug #1 when special key skipped several pages)
  • page() callbacks receive obligatory pagenumber param
  • default page() callback now shows page number
0.2 (stable)
  • do not insert blank line between pages
0.1 (stable)
  • shows content page by page
  • allows to get console/terminal dimensions
  • works on Windows
  • works on Linux

API

..function:: getwidth()

Return width of available window in characters. If detection fails, return value of standard width 80. Coordinate of the last character on a line is -1 from returned value.

..function:: getheight()

Return available window height in characters or 25 if detection fails. Coordinate of the last line is -1 from returned value.

..function:: getch()

Wait for keypress and return character or a list of characters. Arrows and special keys generate a sequence of characters, so if there are extra symbols in input buffer, this function returns list.

..function:: page(content, [pagecallback=prompt])

Output content iterable, calling pagecallback function after each page with page number as a parameter. Default prompt() callback shows page number with 'Press any key . . . ' prompt and waits for keypress.

..function:: echo(msg)

Print msg to the screen without linefeed and flush the output.

..function:: dumpkey(key)

Return hexadecimal representation of a key value returned by getch().

References

Excellent tutorials for Win32 Console by Adrian Worley http://www.adrianxw.dk/SoftwareSite/index.html Console Reference on MSDN http://msdn.microsoft.com/en-us/library/ms682087%28VS.85%29.aspx

Public Domain Curses library maintained by William McBrine http://pdcurses.sourceforge.net/

Ioctl (input/output control) introduction from Wikipedia http://en.wikipedia.org/wiki/Ioctl Linux Programmer's Manual - ioctls for terminals and serial lines http://www.kernel.org/doc/man-pages/online/pages/man4/tty_ioctl.4.html

 
File Type Py Version Uploaded on Size
pager-1.3.zip (md5) Source 2012-12-19 9KB
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