In any Python interpreter run the following command
import this
These Python principles to follow when coding in Python.
The strip method and its cousins, lstrip and rstrip can cause bugs if used without knowing how exactly it works. One can assume that it strips a sequence of character from a string, and lstrip and rstrip strips the leading and trailling character sequence, respectively. However this is not how it works, these strip methods take a set of character, meaning it will check each character separately and remove them from the string.
For example, you might want to remove the path/ substring from the string path/panther.xml. If you decide to use lstrip it will cause unintended consequences, since it will remove the set of characters p, a, t, h, and / from the string if they are the leading characters. Since the p and a characters of the panther.xml substring fall into the set of characters to strip, it will remove those as well, and you will be left with the string nther.
In a scenario like this, I would suggest to use the replace method, and replace the path/ substring with an empty string. You should also set the count argument to 1 to make sure only the first occurence is replaced, to safeguard from any other unintented consequences.
panther = "path/panther.xml"
panther.lstrip("path/") # Prints: nther.xml
panther.replace("path/", "", 1) # Prints: panther.xml
What strip is really good at is removing leading and trailing whitespaces, when no arguments are given and removing sets of characters, but just be careful it does as you intend it to work.
So the lesson here is to always read the official documentation to know exactly how a given method works and don’t assume you know how a method works just from the name.
Return the __dict__ attribute of an Object. Useful for turning the attributes of an instance into a dictionary. Note, it disregards class attributes.
jsonify() returns a Response object, but already populate with the correct mimetype and etc.
Response("{ 'a': 'abc' }", status=200, mimetype='application/json')
jsonify()