Regex Tutorial Video Pt 2
In this tutorial, I continue teaching you how to use Regular Expressions. I specifically go over the numerous functions available in the Python programming language that you can use for searches.
I will explain how to:
- Grab text from text files
- Create Regular Expressions in Python
- Search through strings or files for information
- Manipulate the information, once you retrieve it
If you have any questions, leave them in the comment section below. Enjoy the video
The Code From the Video
f = open(‘randomcharacters.txt’)
strToSearch =””
for line in f:
strToSearch += line
print(strToSearch)
patFinder1 = re.compile(‘Aa1B’)
findPat1 = re.search(patFinder1,strToSearch)
print(findPat1.group()) # Returns the entire first match
print(findPat1.start()) # Returns the location of the first character that matches
print(findPat1.end()) # Returns the location of the last character that matches
print(findPat1.span()) # Returns a tuple with the starting and ending indexes
findPat1 = re.findall(patFinder1,strToSearch)
findPat2 = re.finditer(patFinder1,strToSearch)
for i in findPat1:
print(i)
splitFound = patFinder1.split(strToSearch)
print(splitFound)
subFound = patFinder1.sub(‘Real Text ‘,strToSearch)
print(subFound)
WELCOME MAN