Skip to main content

Separate two files into three files, each containing lines observed in both files/first file only/second file only. Programmed using Cython.

Project description

The filediffs package

Build Status

filediffs takes two files and separates them into

  1. lines found in both files
  2. lines found only in file 1
  3. lines found only in file 2

Code inspired by and implemented using Cython

Lines found in both files are not kept in memory but written to disk every 5.000.000 lines to preserve memory.

This way, even very large files can be separated. Only the diff has to fit in memory.

1. Installation

1.1 Pypi:

filediffs is available on pypi and can therefore be installed via pip

pip install filediffs

Currently, only wheels for Linux are build using manylinux.

On other OS, please install the package as described in the following section.

1.2 Github:

You can clone the package from Github and transpile the Cython code to C++ on your machine.

For Dependency management, Pipenv is used.

The Pipfile defines the python version and package requirements.

You can create a virtual environment for the package with Pipenv by

  1. installing pipenv pip install pipenv
  2. calling pipenv install to install from Pipfile.lock

The file defines the cython build process.

The cpp files can be build using pipenv run python build_ext --inplace.

2. Usage:

2.1 Interactive in Python

The file_diffs function requires two arguments, filename_1 and filename_2, with the path to the files you wish to compare.

In addition, three optional output arguments can be passed to the functions, defining the output files.

If the output arguments are not passed to the function, the output will be saved into the working directory.

from filediffs.filediffs_python.filediffs import file_diffs

2.2 From the terminal

The filediffs package comes with a build in command line interface. This way it can be used to separate files from the terminal:

# To separate two files, simply install the package with pip
pip install filediffs
# and call
filediffs path/to/file1.txt path/to/file2.txt

# If you want to define the filenames of the separated ouput files, optional arguments are provided for the script. 
filediffs path/to/file1.txt path/to/file2.txt --out_filename_both both_files.txt --out_filename_only_in_file1 file1_only.txt --out_filename_only_in_file2 file2_only.txt

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

filediffs-0.1.12.tar.gz (40.5 kB view hashes)

Uploaded source

Built Distributions

filediffs-0.1.12-pp36-pypy36_pp73-win32.whl (56.7 kB view hashes)

Uploaded pp36

filediffs-0.1.12-cp38-cp38-win_amd64.whl (63.7 kB view hashes)

Uploaded cp38

filediffs-0.1.12-cp38-cp38-win32.whl (61.0 kB view hashes)

Uploaded cp38

filediffs-0.1.12-cp37-cp37m-win_amd64.whl (62.9 kB view hashes)

Uploaded cp37

filediffs-0.1.12-cp37-cp37m-win32.whl (60.2 kB view hashes)

Uploaded cp37

filediffs-0.1.12-cp36-cp36m-win_amd64.whl (62.8 kB view hashes)

Uploaded cp36

filediffs-0.1.12-cp36-cp36m-win32.whl (60.1 kB view hashes)

Uploaded cp36

filediffs-0.1.12-cp35-cp35m-win_amd64.whl (62.7 kB view hashes)

Uploaded cp35

filediffs-0.1.12-cp35-cp35m-win32.whl (60.0 kB view hashes)

Uploaded cp35

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page