This is a unique property of Python, other programming languages such as C++ or Java do not support this by default. Initialize complex nested lists in Python in many lines? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. If you want to assign a long string to variable, you can do it as below: Do not add any comma, or you will get a tuple which contains many strings! Could a subterranean river or aquifer generate enough continuous momentum to power a waterwheel for the purpose of producing electricity? Note that you can make the in lookups in constant time if you would define the target as a set: And, as mentioned by @Pramod in comments, in this case value[6] would result in an IndexError since there are only 6 elements defined in value and indexing is 0-based. How do I change the size of figures drawn with Matplotlib? List comprehension Python with multiple control flow. @Arman I'm not sure if I understand your question fully, can you clarify a little? Why is "1000000000000000 in range(1000000000000001)" so fast in Python 3? What does it mean? Which reverse polarity protection is better and why? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. A variable is just a name for a value in a given context. How to read a text file into a string variable and strip newlines? The code below prints a "1" and a "2". Create new column based on values from other columns / apply a function of multiple columns, row-wise in Pandas, TypeError: a bytes-like object is required, not 'str' in python and CSV, Calling functions one by one from a python list. Boolean algebra of the lattice of subspaces of a vector space? Does Python have a ternary conditional operator? We achieve this using a list comprehension with multiple if-else statements. If that is not something you would want, you would replace your __call__ method with: This way, the base Add instance never really changes. In the example above, just use multi-line strings with. Otherwise, it returns `value_if_false`. With the line continuation character, we can explicitly divide a long statement into numerous lines (\). Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? It should be clear now that you know what f(a)(b) does, but to summarize: f(a)(b) just means that the expression f(a) returns a value that is itself callable. What are the advantages of running a power tool on 240 V vs 120 V? What's the meaning of these functions: fn()()? You will index error when you will try to access value[6] and apart of that, what is f in value list, is that some variable or element of list, if this is the element of list, then you should enclose it under single or double quote.

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