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Memory efficient way of reading files line-by-line from the end of file

Project description

file_read_backwards

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Memory efficient way of reading files line-by-line from the end of file

Features

This package is for reading file backward line by line as unicode in a memory efficient manner for both Python 2.7 and Python 3.

It currently supports ascii, latin-1, and utf-8 encodings.

It supports “\r”, “\r\n”, and “\n” as new lines.

Usage Examples

An example of using file_read_backwards for python2.7:

#!/usr/bin/env python2.7

from file_read_backwards import FileReadBackwards

with FileReadBackwards("/tmp/file", encoding="utf-8") as frb:

    # getting lines by lines starting from the last line up
    for l in frb:
        print l

    # do it again
    for l in frb:
        print l

Another example using python3.3:

from file_read_backwards import FileReadBackwards

with FileReadBackwards("/tmp/file", encoding="utf-8") as frb:

    # getting lines by lines starting from the last line up
    for l in frb:
        print(l)

    # do it again
    for l in frb:
        print(l)

Credits

This package was created with Cookiecutter and the audreyr/cookiecutter-pypackage project template.

History

1.0.0 (2016-12-18)

  • First release on PyPI.

1.1.0 (2016-12-31)

  • Added support for “latin-1”.

  • Marked the package “Production/Stable”.

1.1.1 (2017-01-09)

  • Updated README.rst for more clarity around encoding support and Python 2.7 and 3 support.

1.1.2 (2017-01-11)

  • Documentation re-arrangement. Usage examples are now in README.rst

  • Minor refactoring

1.2.0 (2017-09-01)

  • Include context manager style as it provides cleaner/automatic close functionality

1.2.1 (2017-09-02)

  • Made doc strings consistent to Google style and some code linting

1.2.2 (2017-11-19)

  • Re-release of 1.2.1 for ease of updating pypi page for updated travis & pyup.

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