typo

typo is a python package to simulate typographical errors in English language.

Release 0.1.7

• Ability to preserve first and/or last characters in error methods.

Usage

import typo
import datetime

myStrErrer = typo.StrErrer('Hello World! Happy new year 2021.', seed=31)
print(myStrErrer.missing_char().result)
# Should print 'ello World! Happy new year 2021.'

myStrErrer = typo.StrErrer('Hello World! Happy new year 2021.', seed=31)
print(myStrErrer.missing_char(preservefirst=True).result)
# Should print 'Hllo World! Happy new year 2021.'

myStrErrer = typo.StrErrer('Hello World! Happy new year 2021.', seed=2)
print(myStrErrer.missing_char().char_swap().result)
# Should print 'Hlol World! Happy new year 2021.'

myIntErrer = typo.IntErrer(34343, seed=1)
print(myIntErrer.similar_digit().result)
# Should print 39343

myDateErrer = typo.DateErrer(datetime.datetime.strptime("8 Mar 95", "%d %b %y"))
print(myDateErrer.date_month_swap().result)
# Should print 1995-08-03 00:00:00

Currently, following types of typos can be simulated:

String typos:

Given the input Hello World! Happy new year 2021., different error types produce the following errors.

| Error method | Description | Sample output | |-------------------------------------------------------|---------------------------------------------------------------------------|------------------------------------| | char_swap(preservefirst=False, preservelast=False) | Swaps two random consecutive word characters in the string. | Hello World! Ahppy new year 2021. | | missing_char(preservefirst=False, preservelast=False) | Skips a random word character in the string. | Hllo World! Happy new year 2021. | | extra_char(preservefirst=False, preservelast=False) | Adds an extra, keyboard-neighbor, letter next to a random word character. | Hrello World! Happy new year 2021. | | nearby_char(preservefirst=False, preservelast=False) | Replaces a random word character with keyboard-neighbor letter. | Hello World! Happy new ysar 2021. | | similar_char() | Replaces a random word character with another visually similar character. | Hell0 world! Happy new year 2021. | | skipped_space() | Skips a random space from the string. | Hello world! Happy new year2021. | | random_space() | Adds a random space in the string. | Hell o world! Happy new year 2021. | | repeated_char() | Repeats a random word character. | Hello worrld! Happy new year 2021. | | unichar() | Replaces a random consecutive repeated letter with a single letter. | Hello world! Hapy new year 2021. |

Integer typos:

| Error method | Description | Input | Sample output | |--------------------------------------------------------|--------------------------------------------------------------------------------|---------------|---------------| | digit_swap(preservefirst=False, preservelast=False) | Swaps two random consecutive digits in the integer. | 1234567890 | 1324567890 | | missing_digit(preservefirst=False, preservelast=False) | Skips a random digit in the integer. | -1234567890 | -123457890 | | extra_digit(preservefirst=False, preservelast=False) | Adds an extra, keyboard-neighbor, digit next to a random digit in the integer. | 1234567890 | 12345678920 | | nearby_digit(preservefirst=False, preservelast=False) | Replaces a random digit in the integer with a keyboard-neighbor digit. | 1234567890 | 1234567892 | | similar_digit() | Replaces a random digit with another visually similar digit. | 1234567890 | 1234567896 | | repeated_digit() | Repeats a random digit in the integer. | 1234567890 | 12345678900 | | unidigit() | Replaces a random consecutive repeated digit with a single digit. | -112233445566 | -11233445566 |

Datetime typos:

| Error method | Description | Input | Sample output | |-------------------|------------------------------------------------------------------------------------------|----------|---------------| | date_month_swap() | Swaps the day and month of the date if the value of the day is less than or equal to 12. | 8 Mar 95 | 3 Aug 95 |