Iterate Dictionary using for loop What is for loop in Python In Python, the for loop is used to iterate over a sequence such as a list, string, tuple, other iterable objects such as range. With the help of for loop, we can iterate over each item present in the sequence and executes...
As you can see, the dictionary contains key-value pairs of stock symbols and their prices. We can iterate over it and print each stock's information on a different line as follows (using for loop). 1for key, value in portfolio.items() : 2 print("The stock " + key + " has a pri...
(either by the loop or by another thread) are not violated. Add methods to dictionaries that return different kinds of iterators explicitly: 1 2 3 4 5 forkeyindict.iterkeys(): ... forvalueindict.itervalues(): ... forkey,valueindict.iteritems(): ... This means thatfor x in dictis s...
您可以使用for循环遍历字典。 遍历字典时,返回值是字典的键,但也有返回值的方法。 实例 一一打印字典中的所有键名: forxinthisdict: print(x) 亲自试一试 » 实例 一一打印字典中的所有值: forxinthisdict: print(thisdict[x]) 亲自试一试 »
How can you iterate over both keys and values in a dictionary?Show/Hide What happens if you try to modify a list while iterating over it?Show/Hide How do you handle exceptions in a for loop to ensure it doesn't terminate prematurely?Show/Hide Take the Quiz: Test your knowledge wit...
for key,value in dictionary_name.items(): print(key, value) Program: # Python program to loop through a dictionary# to print the keys & values only# creating the dictionarydict_a={'id':101,'name':'Amit','age':21}# printing the dictionaryprint("Dictionary\'dict_a\'is...")print(di...
For Python dictionaries, .__iter__() allows direct iteration over the keys by default. This means that if you use a dictionary directly in a for loop, Python will automatically call .__iter__() on that dictionary, and you’ll get an iterator that goes over its keys:...
for each loop with dictionary : Dictionary Loop « Dictionary « PythonPython Dictionary Dictionary Loop for each loop with dictionary D = {'a':1, 'b':2, 'c':3} for key in D: print key, D[key] Related examples in the same category...
Python stringis a sequence of characters. If within any of your programming applications, you need to go over the characters of a string individually, you can use the for loop here. Here’s how that would work out for you. word="anaconda"forletterinword:print(letter) ...
Aforloop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string). This is less like theforkeyword in other programming languages, and works more like an iterator method as found in other object-orientated programming languages. ...