In this interactive tutorial, we’ll cover many essential Python idioms and techniques python assignments for practice pdf depth, adding immediately useful tools to your belt. Director of the Foundation for the past year, and its Secretary. I was surprised at the reaction to some techniques I used that I had thought were common knowledge.

But many of the attendees were unaware of these tools that experienced Python programmers use without thinking. Many of you will have seen some of these techniques and idioms before. Hopefully you’ll learn a few techniques that you haven’t seen before and maybe something new about the ones you have already seen. These are the guiding principles of Python, but are open to interpretation. A sense of humor is required for their proper interpretation.

If you’re using a programming language named after a sketch comedy troupe, you had better have a sense of humor. Special cases aren’t special enough to break the rules. In the face of ambiguity, refuse the temptation to guess. There should be one—and preferably only one—obvious way to do it. Although that way may not be obvious at first unless you’re Dutch.

Although never is often better than right now. If the implementation is hard to explain, it’s a bad idea. If the implementation is easy to explain, it may be a good idea. Namespaces are one honking great idea—let’s do more of those! This particular “poem” began as a kind of a joke, but it really embeds a lot of truth about the philosophy behind Python. Long time Pythoneer Tim Peters succinctly channels the BDFL’s guiding principles for Python’s design into 20 aphorisms, only 19 of which have been written down. You can decide for yourself if you’re a “Pythoneer” or a “Pythonista”.

The terms have somewhat different connotations. Try to make your programs easy to read and obvious. A PEP is a design document providing information to the Python community, or describing a new feature for Python or its processes or environment. The Python community has its own standards for what source code should look like, codified in PEP 8.