Python: Count repeated characters in a string
Python String: Exercise-42 with Solution
Write a python program to count repeated characters in a string.
Sample Solution:-
Python Code:
import collections
str1 = 'thequickbrownfoxjumpsoverthelazydog'
d = collections.defaultdict(int)
for c in str1:
d[c] += 1
for c in sorted(d, key=d.get, reverse=True):
if d[c] > 1:
print('%s %d' % (c, d[c]))
Sample Output:
o 4 e 3 h 2 t 2 r 2 u 2
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Python: Tips of the Day
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
Ref: https://bit.ly/3fy0R6m
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