ChirpText is a collection of text processing tools for Python 3.

It is not meant to be a powerful tank like the popular NTLK but a small package which you can pip-install anywhere and write a few lines of code to process textual data.

Main features

  • Simple file data manipulation using an enhanced open() function (txt, gz, binary, etc.)
  • CSV helper functions
  • Parse Japanese text with mecab library (Does not require mecab-python3 package even on Windows, only a binary release (i.e. mecab.exe) is required)
  • Built-in "lite" text annotation formats (texttaglib TTL/CSV and TTL/JSON)
  • Helper functions and useful data for processing English, Japanese, Chinese and Vietnamese.
  • Application configuration files management which can make educated guess about config files' whereabouts
  • Quick text-based report generation


chirptext is available on PyPI and can be installed using pip

pip install chirptext

Note: chirptext library does not support Python 2 anymore. Please update to Python 3 to use this package.

Sample codes

Using MeCab on Windows

You can download mecab binary package from and install it.
After installed you can try:

>>> from chirptext import deko
>>> sent = deko.parse('猫が好きです。')
>>> sent.tokens
[[猫(名詞-一般/*/*|猫|ネコ|ネコ)], [が(助詞-格助詞/一般/*|が|ガ|ガ)], [好き(名詞-形容動詞語幹/*/*|好き|スキ|スキ)], [です(助動詞-*/*/*|です|デス|デス)], [。(記号-句点/*/*|。|。|。)], [EOS(-//|||)]]
>>> sent.words
['猫', 'が', '好き', 'です', '。']
>>> sent[0].pos
>>> sent[0].root
>>> sent[0].reading

If you installed MeCab to a custom location, for example C:\mecab\bin\mecab.exe, try

>>> deko.set_mecab_bin("C:\\mecab\\bin\\mecab.exe")
>>> deko.get_mecab_bin()

# Just that & now you can use mecab
>>> deko.parse('雨が降る。').words
['雨', 'が', '降る', '。']

Convenient IO APIs

>>> from chirptext import chio
>>> chio.write_tsv('data/test.tsv', [['a', 'b'], ['c', 'd']])
>>> chio.read_tsv('data/tes.tsv')
[['a', 'b'], ['c', 'd']]

>>> chio.write_file('data/content.tar.gz', 'Support writing to .tar.gz file')
>>> chio.read_file('data/content.tar.gz')
'Support writing to .tar.gz file'

>>> for row in chio.read_tsv_iter('data/test.tsv'):
...     print(row)
['a', 'b']
['c', 'd']

Sample TextReport

# a string report
rp = TextReport()  # by default, TextReport will write to standard output, i.e. terminal
rp = TextReport(TextReport.STDOUT)  # same as above
rp = TextReport('~/tmp/my-report.txt')  # output to a file
rp = TextReport.null()  # ouptut to /dev/null, i.e. nowhere
rp = TextReport.string()  # output to a string. Call rp.content() to get the string
rp = TextReport(TextReport.STRINGIO)  # same as above

# TextReport will close the output stream automatically by using the with statement
with TextReport.string() as rp:
    rp.header("Lorem Ipsum Analysis", level="h0")
    rp.header("Raw", level="h1")
    rp.header("Top 5 most common letters")
    ct.summarise(report=rp, limit=5)


| Lorem Ipsum Analysis 
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. 
Top 5 most common letters
i: 42 
e: 37 
t: 32 
o: 29 
a: 29