how to check if a letter is in a string python code example

Example 1: how to check if a string is composed only of alphabets in python

str1 = "hello world. welcome to python examples."

bool = str1.isalpha()

print('str1 contains only alphabets:', bool)
//output will be False

Example 2: python check if character is letter

>>> 'A'.isalpha()
True
>>> '1'.isalpha()
False

Example 3: python check if string in string

if "blah" not in somestring: 
    continue

Example 4: can you look for specific characters in python

yourString = "string"

if "s" in yourString:
  print("There is an S in your string")
  
if "s" not in yourString:
  print("There is no S in your string")

Example 5: python check if value in string

def is_value_in_string(value: str, the_string: str):
    return value in the_string.lower()

Example 6: How to check a string for specific characters?

if '$' in myString: