[Python-Dev] Proposal: defaultdict Adam Olsen rhamph at gmail.com Tue Feb 21 04:55:22 CET 2006 Previous message: [Python-Dev] Proposal: defaultdict Next message: [Python-Dev] Proposal: defaultdict Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] On 2/20/06, Jim Jewett < jimjjewett at gmail.com > wrote: > Adam Olsen asked: > > ... d.getorset(key, func) would work in your use cases? > > It is an improvement over setdefault, because it doesn't > always evaluate the expensive func. (But why should
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TheAILearner Mastering Artificial Intelligence Menu Skip to content Category Archives: Python Quiz Python Quiz-10 Leave a reply Q1. What will be the output of the following code: len("AILearner") 1 len("AILearner") 8 9 10 Error! Show Answer Answer: 2 Explanation: In Python language, len() function gives the length of an object. When the object is a string, it will output the number characters in the string. Q2. What will be the output of following code: import math def func1(a): return a*a def func2(a): ret
Discussion of building dbt models using Python
Python Doc Problems Python Doc Problem: os.system (2005) By Xah Lee. Date: 2005-09-30 Today i'm trying to use Python to call shell commands. In Perl, it's something like: $output = qx(ls); In Python i quickly located the function due to its well-named-ness: import os os.system("ls") However, according to the doc http://www.python.org/doc/2.4/lib/os-process.html the os.system() returns some esoteric unix thing, not the command output. The doc doesn't say how to get the output of the command. By chance someon
# The History of Python A series of articles on the history of the Python programming language and its community. ## Saturday, May 12, 2018 ### The origins of pgen David Beazley's talk at US PyCon 2018, about parser generators, reminded me I should write a bit about its history. Here's a brief brain dump (maybe I'll expand later). There are actually two pgens. The original, in C, and a rewrite in Python, under lib2to3/pgen2. I wrote both. The original was actually the first code I wrote for Python. Al
Simon Willison’s Weblog Subscribe Sponsored by: Dynatrace — When agents enter the SDLC, observability becomes the enabler to move from code generation to scalable engineering. Read the blog for a framework to get started 20th June 2025 - Link Blog python-importtime-graph . I was exploring why a Python tool was taking over a second to start running and I learned about the python -X importtime feature, documented here . Adding that option causes Python to spit out a text tree showing the time spent
A simple explanation of Python decorators based on first-class functions
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