【Python 正则表达式】多项替换可以写进一个dictionary,然后进行loop through loop through字典的时候,一定记得在字典名称后面加上.items(),.keys(),.values() 1substitution_pattern = {r'[,,]':';',#后面加上详细注释2r'^\s':'',3r'\n\n':'\\n',4r'\s?…\s?':'…',5r'\[.*].*\.':'...
for value in dictionary_name.values(): print(value) Program: # Python program to loop through a dictionary# to print the values only# creating the dictionarydict_a={'id':101,'name':'Amit','age':21}# printing the dictionaryprint("Dictionary\'dict_a\'is...")print(dict_a)# printing ...
Conversely, thevalues()method returns a view object that displays a list of all the values in the dictionary. # Example4:Iterating through valuesforvalue in my_dict.values():print(f"Value:{value}") These methods can be handy when you only need information about either the keys or values....
Python for loop tutorial shows how to create loops in Python withforstatement. Python loop definition Aloopis a sequence of instructions that is continually repeated until a certain condition is reached. For instance, we have a collection of items and we create a loop to go through all element...
In Python, dictionaries are defined using curly braces and each key-value pair is separated by a colon. Here's an example of a Python dictionary: my_dict = {"name": "John", "age": 30, "city": "New York"} Copy Looping Through a Dictionary You can loop through a dictionary using...
integers=[]foriinrange(10):integers.append(i)print(integers) Copy In this example, the listintegersis initialized empty, but theforloop populates the list like so: Output [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] Similarly, we can iterate through strings: sammy=...
8. For Loop Using Python Set Asetin Python is an unordered collection of items. so, the objects in a set are not ordered, indexes cannot be used to access them. Sets are an unordered collection, and so the values cannot be accessed through indexing. If we want to access the set value...
Retrieving values from Dictionary {'India': 'Delhi', 'Australia': 'Canberra', 'Nepal': 'Kathmandu', 'Bhutan': 'Thimphu'} Example 8 - While loop inside for loop In the example given below, we will print the multiplication table of a number till the given number. ...
When looping through a dictionary, the variable is assigned to the key: berries = {'Blueberry': 100, 'Raspberry': 125, 'Strawberry': 150} for key in berries: print(key) Copy Blueberry Raspberry Strawberry Copy To access the values of the dictionary, use the key’s index:...
2. Simple One Line For Loop in Python Use for loop to iterate through an iterable object such as alist,set,tuple,string,dictionary, etc., or a sequence. This iteration process is done in one-line code this is the basic way to write for loop in one line. ...