check if string is in string python code example
Example 1: python string contains substring
fullstring = "StackAbuse"
substring = "tack"
if fullstring.find(substring) != -1:
print "Found!"
else:
print "Not found!"
Example 2: how to check if a string contains a word python
if word in mystring:
print('success')
Example 3: how to check for a substring in python
def find_string(string,sub_string):
return string.find(sub_string)
#.find() also accounts for multiple occurence of the substring in the given string
Example 4: check string line python
def search_string_in_file(file_name, string_to_search):
"""Search for the given string in file and return lines containing that string,
along with line numbers"""
line_number = 0
list_of_results = []
# Open the file in read only mode
with open(file_name, 'r') as read_obj:
# Read all lines in the file one by one
for line in read_obj:
# For each line, check if line contains the string
line_number += 1
if string_to_search in line:
# If yes, then add the line number & line as a tuple in the list
list_of_results.append((line_number, line.rstrip()))
# Return list of tuples containing line numbers and lines where string is found
return list_of_results
Example 5: python check if value in string
def is_value_in_string(value: str, the_string: str):
return value in the_string.lower()