python-snippets
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python-snippets

About the Book

About the Author

Table of Contents

  • “Python Tips and Tricks: A guide to making the most of the python language”
  • How to iterate through 2 lists in Python:
  • How to Split a String on the First N Occurrences in Python
  • How to Quickly Find the Longest String in a List in Python
  • You can round numbers in Python using negative rounding numbers
  • Get Rid of Duplicates without using sets
  • Generate Random Numbers using module random()
  • 3 Ways to Check Whether a List is Empty
  • How to replace a text with some other text
  • How to use Lambda functions
  • How to Quickly Simplify if statements
  • How to find the first day of the month
  • How to put days before months
  • How to find the difference between 2 dates in months
  • How to subtract weeks from a date
  • How to subtract days from a date
  • How to add weeks to a date
  • How to add days to a date
  • How to find the number of days between 2 dates
  • How to convert from one timezone to another one
  • How to convert a string into a date
  • Date formatting
  • Math operation inside strings
  • Get default value for missing keys
  • Swap values
    • Shuffle elements using shuffle()
  • How to Quickly Check Whether a String is a Palindrome
  • Try else
  • Time spent
  • Chained function call
  • Decapitalize
  • Get vowels
  • Comma-separated
  • Compact
  • Capitalize first letters
  • Chek whether 2 sets have the same elements
  • Find the largest element in a dictionary using max
  • Find the index of a substring in a string
  • How to generate fake data using Faker
  • How to Check Whether a Variable is a Number
  • How to Convert two lists into a dictionary
  • How to Display a Progress bar in Python using tqdm
  • How to Quickly Find the Symmetric Difference of 2 Sets in Python
  • How to Quickly Find the Union of 2 Sets in Python
  • How to Quickly Find the Intersection of 2 Sets in Python
  • How to Quickly Find the Difference Between 2 Sets in Python
  • How to Quickly Multiply Elements in a List in Python
  • How to Reverse a List Using Negative Slicing in Python
  • How to Repeat a List in Python
  • How to start implementing a method and finish it later on using Pass statement
  • How to generate unique IDs using the uuid module
  • Difference between sort() and sorted()
  • You can check whether a value is not part of a list using “not in”
  • Print the place where a module is located
  • You can remove duplicates from a list in a single line
  • You can avoid throwing errors when trying to access a non-existent key in a dictionary
  • You can build your own iterator
  • Difference between copy() and deepcopy()
  • Find the most frequent element in a list in just one line
  • Sort elements of a string or list based on their frequency
  • Count the number of elements using “count” from “itertools”
  • Check if 2 strings are anagrams using Counter
  • Count the number of elements in a string or list using Counter from “collections”
  • You cannot change the value of a global variable just by mentioning it inside a function
  • Other values that evaluate to False are None, “False” and the number 0
  • Any non-empty list, tuple, or dictionary is evaluated to True
  • Any non-empty string is evaluated to True
  • At least one condition is met out of many in a single if-statement
  • Multiple conditions at a single if-statement
  • Condition inside the print function
  • Join 2 sets
  • Remove all elements from a list, set, or dictionary
  • Remove all elements from a list, set, or dictionary
  • Get sub-tuples starting from an index
  • Get sub-tuples by making jumps
  • Get the index of an element in a tuple
  • Count the number of times an element appears in a tuple
  • You can easily get the last n elements using slice()
  • Quickly count the number of times an element appears in a list that satisfies a condition
  • Nest a list and a tuple inside a tuple
  • We can use negative indexes in tuples too
  • Check if a string has all its words starting with an uppercase character
  • Check if a string represents a Chinese number
  • Check if a string represents a number
  • Remove characters from the right based on the argument
  • Check if all characters in a string are alphabets
  • Check if all characters in a string are either alphabets or numbers
  • Check if all characters are white spaces in a string
  • Swap cases of characters in a string
  • You can define a custom printable version for an object of a class
  • You can also redefine the “<” and “==” operators inside your own classes
  • You can redefine the “+” operator inside your own classes
  • You can call the parent class’s initializer using super() or parent class’s name
  • You can define a method that can be called with as many parameters as you want
  • Check the memory usage of an object
  • You can access private properties even outside their intended scope
  • You can define the same method multiple times inside the same scope
  • You don’t need to compare the length with 0
  • range() starts by default at 0
  • range() includes a step parameter that may not be known that much
  • map() returns a new object
  • filter() returns a new object
  • Conditionals statements in lambda should always include the “else” part
  • Lambda functions can only be in one line
  • Add a value in the first position in a list
  • Convert a value into a complex number
  • You can convert any data type into a boolean value
  • You can convert a boolean value into a number
  • You can use boolean values in arithmetic operations
  • Swap keys and values of a dictionary
  • Get values of a dictionary in a single line
  • Get keys of a dictionary in a single line
  • Get the value of a character in Unicode
  • Check whether 2 strings are anagrams using sorted()
  • An “if-elif” block can exist without the else block at the end
  • You can turn a set into an immutable set
  • Lists, sets, and dictionaries are mutable
  • Strings and tuples are immutable
  • Integers, floats, strings, booleans, and tuples are immutable
  • Find the unique id of a variable using id()
  • Check whether a string starts with a particular character without using the index 0
  • Check whether a string is larger than another string
  • Merge 2 dictionaries quickly
  • Difference between == and “is”
  • Float division
  • Partial Slicing with just the beginning or ending index
  • Reverse slicing
  • Slice a string using a step function
  • Reverse the ordering of a list
  • You can separate big numbers with the underscore
  • You can use the underscore character anywhere in the name of a variable
  • You cannot have 0 as the first digit in a number
  • You cannot use an operator at the beginning of the name of a variable
  • You cannot use a number at the beginning of the name of a variable
  • Print multiple values with a custom separator in between each value
  • Print multiple elements in the same line using multiple prints
  • Print multiple elements with a single print() statement
  • Avoid “trivial” mistakes by using named parameters
  • Convert a string into a list of strings
  • Find the index of an element in a list or tuple
  • Merge dictionaries in a single readable line
  • Compare 3 numbers just like in Math
  • Repeat strings without looping
  • Enumerate related items of the same concept via Enum
  • Navigate in a List without using for loops
  • Assign multiple variables in just one line
    • “Else” condition inside a “for” loop
  • Extract elements from lists
  • Get n largest or n smallest elements in a list using the module heapq
  • Pass lists as method arguments
  • Get all the elements in the middle of the list

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