New! PrivateView
Beta
Working on a python assignment and was curious as to what [:-1] means in the context of the following code: instructions = f.readline()[:-1] Have searched on here on S.O. and on Google but to no avail. Would love an explanation!
Copied 
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
New! PrivateView
BetaHere, we specify a start of index 2, no end, and a step of -1. Slicing here will start from index 2 which is 3. The negative steps mean the next value in the slice will be at an index smaller than the previous index by 1. This means 2 - 1 which is 1 so the value at this index, which is 2 will be added to the slice.
Copied
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
New! PrivateView
BetaHow to reverse a Python list using 1 in Python? The negative slicing and negative indexing can be applied to reverse a string or list in python. Let us take a string named “GURU99” to illustrate an example. Example. Python Code: b= "GURU99" print ("The list is", b) Substring=b[::-1] print (" The reverse of string GURU99 is", Substring) Output:
Copied
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
New! PrivateView
BetaSets each bit to 1 if both bits are 1: x & y: Try it » | OR: Sets each bit to 1 if one of two bits is 1: x | y: Try it » ^ XOR: Sets each bit to 1 if only one of two bits is 1: x ^ y: Try it » ~ NOT: Inverts all the bits ~x: Try it » << Zero fill left shift: Shift left by pushing zeros in from the right and let the leftmost bits fall off: x ...
Copied
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
New! PrivateView
BetaDiscover the functionality and purpose of the 'do' statement in Python programming. Learn how it can be utilized effectively in your code. ... step] # slicing from 1st to last in steps of 1 in reverse order arr[::-1] Remember, negative number for step means "in reverse order".
Copied
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
New! PrivateView
BetaIf you leave slots empty, there's a default. [:] means: The whole thing. [::1] means: Start at the beginning, end when it ends, walk in steps of 1 (which is the default, so you don't even need to write it). [::-1] means: Start at the end (the minus does that for you), end when nothing's left and walk backwards by 1.
Copied
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
New! PrivateView
BetaNow the indexing here and also the step count, support negative numbers. So, if you give a -1 index, it translates to len(a)-1 index. And if you give -x as the step count, then it would step every x'th value from the start index, till the stop index in the reverse direction. For example. a = '1234' print a[3:0:-1] This would return . 432
Copied
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
New! PrivateView
BetaIn this lesson, we will look at the += operator in Python and see how it works with several simple examples. The operator ‘+=’ is a shorthand for the addition assignment operator . It adds two values and assigns the sum to a variable (left operand).
Copied
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
New! PrivateView
BetaYou can slice a string like so: stringname[x:y:z]. This will refer to a subsection of the string, stringname. x refers to the starting position, y to the end position (remember in python, x is inclusive and y is exclusive), and z is the jump between each item.
Copied
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
New! PrivateView
BetaDemystifying python ::1 Meaning: A Comprehensive Guide Introduction. In the realm of Python programming, certain syntax elements might seem a bit cryptic at first glance. One such element is the use of ::1 in Python. This notation is related to Python's powerful slicing capabilities, which are fundamental for working with sequences like strings, lists, and tuples.
Copied
See Cached Version
Your search and this result
- The search term appears in the result: python 1 meaning
- The website matches one or more of your search terms
- Other websites that include your search terms link to this result
- The result is in English (New Zealand)
Searches related to python 1 meaning
Searches related to python 1 meaning
