![How Can We Test if a Letter in a String is Uppercase or Lowercase in Python programming language - YouTube How Can We Test if a Letter in a String is Uppercase or Lowercase in Python programming language - YouTube](https://i.ytimg.com/vi/byCBj51JOjk/maxresdefault.jpg)
How Can We Test if a Letter in a String is Uppercase or Lowercase in Python programming language - YouTube
![python - How to lowercase a pandas dataframe string column if it has missing values? - Stack Overflow python - How to lowercase a pandas dataframe string column if it has missing values? - Stack Overflow](https://i.stack.imgur.com/XHZbN.png)
python - How to lowercase a pandas dataframe string column if it has missing values? - Stack Overflow
When I am checking equality of two strings, is it faster to convert both strings to uppercase first or to convert to lowercase? Does the equality check run faster with uppercase or
![write a python program to accept a string and print the number of uppercase, lower case, vowel, consonants, and spaces in the given string using class | by Srinidhi.R | Medium write a python program to accept a string and print the number of uppercase, lower case, vowel, consonants, and spaces in the given string using class | by Srinidhi.R | Medium](https://miro.medium.com/v2/resize:fit:1054/1*dBtYvrAzCrtBJxc0ye4etg.png)