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$ python -m timeit -s 'd = {}' 'd.update({"key": "value"})' | |
1000000 loops, best of 3: 0.293 usec per loop | |
$ python -m timeit -s 'd = {}' 'd["key"] = "value"' | |
10000000 loops, best of 3: 0.0433 usec per loop |
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# List all URLs in a Django application. | |
from collections import namedtuple | |
from django.conf.urls import RegexURLResolver, include | |
from django.views.generic import View | |
def walk_patterns(patterns, prefix=()): | |
"""Yields pairs of (RegexURLPattern, prefixes) where the first is the | |
pattern instance which has the actual view function, url name, etc. and the |
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# Noughts and crosses for Python 2 | |
# http://www.reddit.com/r/learnpython/comments/oxgr0/converting_to_and_from_ternary/ | |
# Winning positions, represented as bit masks | |
wins = [ | |
'111 000 000', '000 111 000', '000 000 111', # Across | |
'100 100 100', '010 010 010', '001 001 001', # Down | |
'100 010 001', '001 010 100', # Diagonal | |
] | |
# Store winning boards as integers |
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# http://www.reddit.com/r/learnpython/comments/qkh43/new_to_python_searching_csv_files/ | |
# http://stackoverflow.com/questions/9564322/loop-through-rows-of-one-csv-file-to-find-corresponding-data-in-another | |
# http://stackoverflow.com/questions/9577997/search-through-csv-from-specific-row-down | |
import csv | |
# Difference constants. Note these are floats, so don't expect perfect decimal | |
# mathematics. | |
DELTA_HI = 0.001 |
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#!/usr/bin/env python | |
# http://www.reddit.com/r/learnpython/comments/qqnqt/metacritic_score_grabber/ | |
import urllib2 | |
import re | |
url = 'http://www.metacritic.com/game/xbox-360/mass-effect-3' | |
r = urllib2.urlopen(url) | |
html = r.read() |
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# Comparison of dictionary types | |
# http://www.reddit.com/r/Python/comments/qxjho/sdict_sorted_dictionary_for_python_sdict_is_a/ | |
from sdict import Dict | |
from collections import OrderedDict | |
import itertools | |
import timeit | |
def keygen(): | |
"""A generator that produces all possible combinations of letters.""" |
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# Based on | |
# http://wiki.python.org/moin/PythonDecoratorLibrary#Memoize | |
class memoized(object): | |
"""Decorator that caches a function's return value each time it is called. | |
If called later with the same arguments, the cached value is returned, and | |
not re-evaluated. | |
""" | |
def __init__(self, func): |
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# Python 2.7 | |
from collections import OrderedDict | |
in_name = 'F87.p190' | |
out_name = 'my_results.txt' | |
results = OrderedDict() |
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import csv | |
import requests | |
from BeautifulSoup import BeautifulSoup | |
from datetime import datetime | |
# http://www.reddit.com/r/learnpython/comments/tczgd/help_me_improve_this_code_webscraping_liquor/ | |
# http://pastebin.com/TinHnCSp | |
# http://www.specsonline.com/cgi-bin/snf?body=/cgi-bin/prodlist&index=Liquors%7C255%7CSCOTCH+MALTS |
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# Demonstration of inspecting all the routes, including those on sub-apps, | |
# from the default app instance. | |
# | |
# This should be run directly to print a list of route prefixes and the rules. | |
# Tested with Python 2.7 and Bottle-dev. Patch here | |
# https://github.com/davidwtbuxton/bottle/commit/ddd712ef252b06ecd0e957f8ac4e37b65ee79cae | |
import bottle | |
subapp = bottle.Bottle() |
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