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ConvUtils 1.0.1

A library of convenient utility functions and pure Python data structures.

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Latest Version: 1.1

ConvUtils provides a small library of convenience functions for dealing with a variety of tasks, such as creating CSV readers and writers, and convenient data structures, such as a two-way dictionary.

This package provides two libraries: convutils and convstructs.

convutils

convutils provides the following functions:

  • make_csv_reader creates a csv.DictReader or csv.Reader instance with the convenience of the user not having to explicitly specify the CSV dialect
  • make_csv_dict_writer creates a csv.DictWriter instance with the convenience of not having to manually enter the header row yourself
  • append_to_file_base_name will return a modified file name given an original one and a string between the base name and the extension (e.g., append_to_file_base_name('myfile.txt', '-2') returns 'myfile-2.txt')
  • count_lines counts the number of lines in a file
  • split_file_by_parts takes one large file and splits it into new files, the maximum number of which is given by the user
  • split_file_by_num_lines takes one large file and splits it into new file, the maximum number of lines in each being defined by the user
  • column_args_to_indices takes a string representing desired columns (e.g., '1-4,6,8') and converts it into actual indices and slices of an indexable Python sequence

convstructs

convstructs provides two convenient data structures, both specialized subclasses of Python's dict.

  • SortedTupleKeysDict is a dictionary which expects 2-tuples as keys, and will always sort the tuples, either when setting or retrieving values
  • TwoWaySetDict is a dictionary that assumes the values are sets, and will store a reverse lookup dictionary to tell you, for each set in the values that some item belongs to, the keys with which item is associated
 
File Type Py Version Uploaded on Size # downloads
ConvUtils-1.0.1.tar.gz (md5) Source 2011-01-18 7KB 504