Notes in Python - Idiomatic

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Published	05/03/2024	Refactor:x, y, z = [1] *3if x <= y and y <= z:    print True
Published	05/03/2024	Refactor:is_generic_name = Falsename = 'Tom'if name == 'Tom' or name == 'Dick' or name == 'Harry':    is_generic_name = Trueprint is_generic…
Published	05/03/2024	Refactor:foo = Truevalue = 0if foo:    value = 1print(value)
Published	05/03/2024	Refactor to be more readableo = xrange(11)[e + 5 for e in o if e > 4]
Published	05/03/2024	Write a function that check if a list contains a zeroa = [1, 1]e = [1, 0]
Published	05/03/2024	What are extra capabilities of namedtuples?
Published	05/03/2024	print this with format template and named attributesname = 'Eor'animal = 'donkey'age = 4
Published	05/03/2024	if type is one of the following:list, dict, str, tuplea = []
Published	05/03/2024	What is the main advantage of generators?
Published	05/03/2024	Refactor:is_generic_name = Falsename = 'Tom'if name == 'Tom' or name == 'Dick' or name == 'Harry':     is_generic_name = True
Published	05/03/2024	write 'hi' 'there' with 10 spaces chunks center aligned
Published	05/03/2024	Write 'BIG SALE' surrounded by ! #=> '!!!!!!BIG SALE!!!!!!'
Published	05/03/2024	To write to a file, but only if it doesn't exist already:
Published	05/03/2024	Write message to std error
Published	05/03/2024	Raising exceptions with a traceback:
Published	05/03/2024	Exception chaining
Published	05/03/2024	Test:class FileDatabase:    def __init__(self, filename):        try:            self.file…
Published	05/03/2024	Catching exceptions
Published	05/03/2024	Metaclasses
Published	05/03/2024	Imports relative to a packagemypackage/    __init__.py    submodule1.py    submodule2.pythe code in submodule1.py:
Published	05/03/2024	Iterable dict keys:heights = {'Fred': 175, 'Anne': 166, 'Joe': 192}
Published	05/03/2024	Iterable dict values:heights = {'Fred': 175, 'Anne': 166, 'Joe': 192}
Published	05/03/2024	Iterable dict itemsheights = {'Fred': 175, 'Anne': 166, 'Joe': 192}
Published	05/03/2024	File IO with open()
Published	05/03/2024	Create an iterator, so you call next method on ita = [1, 2, 3]
Published	05/03/2024	# Refactor to use matrix operatorimport numpy as npa = np.array([[1, 0], [0, 1]])b = np.array([[4, 1], [2, 2]])np.dot(a, b)
Published	05/03/2024	Write a one liner to put:- 9 into a - 0-8 into rest
Published	05/03/2024	open text file from interneturl = 'https://www.gutenberg.org/files/38594/38594-0.txt'
Published	05/03/2024	Looping backwardscolors = ['red', 'green', 'blue', 'yellow']
Published	05/03/2024	Unpacking actually works with any object that happens to be _____, not just tuples or lists.
Published	05/03/2024	Find files that .c or .hfilenames = [ 'Makefile', 'foo.c', 'bar.py', 'spam.c', 'spam.h' ]
Published	05/03/2024	Everything in Python is an object and a ___
Published	05/03/2024	dir() ==
Published	05/03/2024	Define a easy to update list
Published	05/03/2024	Hex format strings
Published	05/03/2024	Given a RGB decimal values, convert to a hexadecimal representation.assert rgb(0,0,0) == "000000"assert rgb(1,2,3) == "010203"assert rgb(255…
Published	05/03/2024	find version of python within python
Published	05/03/2024	Only use a list comprehension when ___________,otherwise use a ____________
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