splitting a text file into words using regex in python

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brand new to python!!! I'm given a text file https://en.wikipedia.org/wiki/Character_mask and I need to split the file into single words, (more than a single letter separated by one of more of any other character) I've tried using regex but can't seem to split it right without error. here is the code I have so far, can anyone help me fix this regex expression

import re 
file = open("charactermask.txt", "r")
text = file.read()
message = print(re.split(',.-\d\c\s',text))
print (message)
file.close()

You can use re.findall with the following regex pattern instead to find all words that are more than 1 character long.

Change:

message = print(re.split(',.-\d\c\s',text))

to:

message = re.findall(r'[A-Za-z]{2,}', text))

Reading a text file and splitting it into single words in python, If you want a regex solution, which would allow you to filter wordN vs lineN type words in the example file: import re with open("words.txt") as f:  Regex expression starts with the alphabet r followed by the pattern that you want to search. The pattern should be enclosed in single or double quotes like any other string. The above regex expression will match the text string, since we are trying to match a string of any length and any character.


If you are looking for simple tokens of words from text string you can use .split it will work like a charm! For example

mystring = "My favorite color is blue"
mystring.split()
['My', 'favorite', 'color', 'is', 'blue']

How to use Split in Python, Splitting String/lines in python Splitting String by space Splitting on first occurrence by tab(\t) Splitting String by comma(,) Split string with multiple delimiters Split a string into a list. The following Python program reading a text file and splitting it into single words in python In this case Python uses Regular Expression. Split strings in Python (delimiter, line break, regex, etc.) Here's how to split strings by delimiters, line breaks, regular expressions, and the number of characters in Python. Split by delimiter: split. Use split() method to split by single delimiter. If the argument is omitted, it will be separated by whitespace.


If you're just trying to split the text then SmashGuy's answer should get your job done. Using regex would seem like an overkill. Additionally, your regex pattern doesn't quite seem to do what you described your intention to be. You might want to test your pattern out until you get it right before plugging it into your python script. Try https://regex101.com/

Here's what your pattern does right now:

, matches the character , literally (case sensitive)
. matches any character (except for line terminators)
- matches the character - literally (case sensitive)
\d matches a digit (equal to [0-9])
\c matches the character c literally (case sensitive)
\s matches any whitespace character (equal to [\r\n\t\f\v ])

I'm not sure if you actually meant [,.-], one of these character-prefixes and you might have had the wrong impression on the \c token too as it doesn't do anything special in python's flavor of regex.

Using Regex for Text Manipulation in Python, To implement regular expressions, the Python's re package can be used. Now the previous regex expression matches a string with any length and any Let's split a string of words where one or more space characters are found, as shown  I am very new to python and also didn't work with text beforeI have 100 text files, each has around 100 to 150 lines of unstructured text describing patient's condition. I read one file in python using:


3 Processing Raw Text, For our language processing, we want to break up the string into words and Next, in the Python interpreter, open the file using f = open('document.txt'), To use regular expressions in Python we need to import the re library using: import re. The split() method in Python returns a list of the words in the string/line , separated by the delimiter string. This method will return one or more new strings. All substrings are returned in the list datatype. Syntax : separator : The is a delimiter.


Split text file into words - Python, To split a text file into words you need multiple delimiters like blank, punctuation, math signs (+-*/), parenteses and so on. I didn't succeeded in using re.split() Jul 18 '05 This regular expression contains a character set '\s,{}[' followed by the A Python program can read a text file using the built-in open() function. For example, below is a Python 3 program that opens lorem.txt for reading in text mode, reads the contents into a string variable named contents , closes the file, and then prints the data.


How to Clean Text for Machine Learning with Python, You must clean your text first, which means splitting it into words and Download the file and place it in your current working directory with the file Tools like regular expressions and splitting strings can get you a long way. The split() method splits a string into a list. You can specify the separator, default separator is any whitespace. Note: When maxsplit is specified, the list will contain the specified number of elements plus one .