Python: Remove all characters except a specified character in a given string
Python String: Exercise-72 with Solution
Write a Python code to remove all characters except a specified character in a given string.
Sample Solution:
Python Code:
def remove_characters(str1,c):
return ''.join([el for el in str1 if el == c])
text = "Python Exercises"
print("Original string")
print(text)
except_char = "P"
print("Remove all characters except",except_char,"in the said string:")
print(remove_characters(text,except_char))
text = "google"
print("\nOriginal string")
print(text)
except_char = "g"
print("Remove all characters except",except_char,"in the said string:")
print(remove_characters(text,except_char))
text = "exercises"
print("\nOriginal string")
print(text)
except_char = "e"
print("Remove all characters except",except_char,"in the said string:")
print(remove_characters(text,except_char))
Sample Output:
Original string Python Exercises Remove all characters except P in the said string: P Original string google Remove all characters except g in the said string: gg Original string exercises Remove all characters except e in the said string: eee
Flowchart:

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Previous: Write a Python program to move all spaces to the front of a given string in single traversal.
Next: Write a Python program to count Uppercase, Lowercase, special character and numeric values in a given string.
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Python: Tips of the Day
What is the difference between Python's list methods append and extend?
append: Appends object at the end.
x = [1, 2, 3] x.append([4, 5]) print (x)
Output:
[1, 2, 3, [4, 5]]
extend: Extends list by appending elements from the iterable.
x = [1, 2, 3] x.extend([4, 5]) print (x)
Output:
[1, 2, 3, 4, 5]
Ref: https://bit.ly/2AZ6ZFq
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