Learn how to use different methods and tools to determine the length of a string in Python, such as the len() function, the sys.getsizeof() function, and the re.findall() function.

A data quality check project, mainly for email, mobile phone number, name, etc. Use Python, pandas, sql and other tools define functions to detect the distribution pattern of data, clean data, split ...

This Python project contains two functions: letter_frequency will take in a word to check, and a letter to check for. It will return an integer denoting the number of times the 'letter' appears in the ...