Two range in for loop python
I have a couple of simple loops like so: Show
What I would like to is condense this into one loop using syntax of the order:
I realise that syntax will not work, but that is the basic concept of what I need. I've seen people using zip to iterate two ranges simultaneously, but this is not what I need. Any ideas? asked Jun 21, 2015 at 12:21
5 From https://docs.python.org/2/library/itertools.html#itertools.chain :
Example:
for python 3 you can loop into the two ranges together Example:
A.Raouf 2,0211 gold badge24 silver badges33 bronze badges answered Jun 21, 2015 at 12:24
utdemirutdemir 25.8k10 gold badges61 silver badges81 bronze badges 1 You can convert the two iterators for your ranges to lists and then combine them with an addition:
kalehmann 4,5536 gold badges24 silver badges35 bronze badges answered Aug 23, 2019 at 11:07
Oleg KOleg K 711 silver badge1 bronze badge
answered Apr 9, 2018 at 10:56
2 1. For loop with rangeIn the previous lessons we dealt with sequential programs and conditions. Often the program needs to repeat some block several times. That's where the loops come in handy. There are
for character in 'hello': print(character) Another use case for a for-loop is to iterate some integer variable in increasing or decreasing order. Such a sequence of integer can be created using the function for i in range(5, 8): print(i, i ** 2) print('end of loop') # 5 25 # 6 36 # 7 49 # end of loop Function There's a reduced form of range() - for i in range(3): print(i) # 0 # 1 # 2 This way we can repeat some action several times: for i in range(2 ** 2): print('Hello, world!') Same as with if-else, indentation is what specifies which instructions are
controlled by Range() can define an empty sequence, like for i in range(-5): print('Hello, world!') Let's have more complex example and sum the integers from 1 to n inclusively. result = 0 n = 5 for i in range(1, n + 1): result += i # this ^^ is the shorthand for # result = result + i print(result) Pay attention that maximum value in range() is To iterate over a decreasing sequence, we can use an extended form of range() with three arguments - for i in range(10, 0, -2): print(i) # 10 # 8 # 6 # 4 # 2 Advertising by Google, may be based on your interests 2. setting the function print() By default, the function print(1, 2, 3) print(4, 5, 6) print(1, 2, 3, sep=', ', end='. ') print(4, 5, 6, sep=', ', end='. ') print() print(1, 2, 3, sep='', end=' -- ') print(4, 5, 6, sep=' * ', end='.') Advertising by Google, may be based on your interests Can you have 2 variables in a for loop Python?The use of multiple variables in a for loop in Python can be applied to lists or dictionaries, but it does not work for a general error. These multiple assignments of variables simultaneously, in the same line of code, are known as iterable unpacking.
Can you add two ranges Python?Python doesn't have a built-in function to merge the result of two range() output. However, we can still be able to do it. There is a module named 'itertools' which has a chain() function to combine two range objects.
How do you write a range in a for loop in Python?In Python, Using a for loop with range() , we can repeat an action a specific number of times.. Here, start = 0 and step = 1 as a default value.. If you set the stop as a 0 or some negative value, then the range will return an empty sequence.. If you want to start the range at 1 use range(1, 10) .. Can you have two arguments in a for loop?With two arguments in the range function, the sequence starts at the first value and ends one before the second argument. Programmers use x or i as a stepper variable.
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