Python

It’s because any iterable can be joined (e.g, list, tuple, dict, set), but its contents and the “joiner” must be strings. For example: Using something other than strings will raise the following …

This code will read the entire file into memory and remove all whitespace characters (newlines and spaces) from the end of each line: If you’re working with a large file, …

In Python, you can use the replace() and translate() methods to remove characters you want to remove from a string and return a new modified string result. Strings, and especially user-generated input may contain …

This article will introduce different methods to remove spaces in a messy Python string based on different scenarios and requirements. After reading, you can choose the most appropriate way for …

Sample query: I have a dictionary: keys are strings, values are integers. Example: I’d like to get ‘b’ as an answer, since it’s the key with a higher value. I did the following, …

In Python 2 (and Python 3) you can do: Basically % is like printf or sprintf. For Python 3.+, the same behavior can also be achieved with format: Learn more about format and f-strings from this …

To check the existence of a local variable: To check the existence of a global variable: To check if an object has an attribute: How to check if a variable …

In all officially maintained versions of Python, the simplest approach is to use the subprocess.check_output function: check_output runs a single program that takes only arguments as input.1 It returns the result exactly as printed …

Query statement: I need to get a line count of a large file (hundreds of thousands of lines) in python. What is the most efficient way both memory- and time-wise? …

Sample query: I use the following code segment to read a file in python: Input file is: and when I print data I get As I see data is in list form. …