Well, one reason is that the assignment operator = must have an expression on the right, not a (series of) statement(s). You might then ask why this is so, and I guess it is chosen to limit the complexity of the parser, and to disallow what one might consider confusing code. Note that your toto … Read more
This import statement is incorrect: from utils.pkg2.mod2 import func2 If it has ever worked correctly, that was relying on resolving with the current working directory, implicit relative imports in Python 2.x, or a manually munged PYTHONPATH / sys.path. This is the type of import for which PEP8 said: Implicit relative imports should never be used … Read more
Let’s simplify your program to understand how to get 5005 results: gencodelist = [] for i in range(1, 100): gencodelist.append(str(i) + ‘ ‘) gencodeout=””.join(gencodelist) print(gencodeout) Here we are adding elements to the list gencodelist 99 times (from 1 to 99), and print all elements of this list each time. So, we have 1 + 2 … Read more
In this case it creates the tuple (ti, tj) and passes it to dense.__getitem__(). As to what that accomplishes, you will need to see the documentation and/or source for dense‘s type. solved What’s the Pythonic way to initialize an array?
Introduction Python is a powerful programming language that is widely used for a variety of tasks. One of the most common tasks is to initialize an array. An array is a data structure that stores a collection of elements. Initializing an array means setting up the array with the desired elements. There are many ways … Read more
If I understood you code and data correctly, each item in pin_configuration begins with the target index, and then the indices to set to True. In python3, using extended iterable unpacking, you can do the following: for r, *indices in pin_configuration: for j in indices: bool_list[r – 1][j – 1] = True to adapt it … Read more
This should fix it: def print_guessed(secret_word): return ‘-‘*len(secret_word) The problem with your code is that you are trying to modify a string by its index. However str object in Python is not mutable. You have to construct a new string. Note that this function returns the same result as other people have proposed. However it … Read more
The module was called Tkinter, with a capital T, in Python 2.7. Python 3 renamed most stdlib modules that didn’t fit the coding standard (mostly because they’d been added before there was a coding standard). By 2018, most books, YouTube tutorials, Stack Overflow answers, blog posts, etc. are going to show you Python 3, so … Read more
Here’s what’s wrong with your code: You’re using *args which would expand the string you’re passing into the function’s arguments which is not what you want. I’ve replaced it with arg. You’re using x[n] instead of simply x. When you’re looping through the string, you’re going at it one character at a time. Therefore, simply … Read more
About your code: if y == 1: return y elif y <= 1 and y <= 999999999: print(sum(y)) First, why are you using return in if part but using print() in elif part? Then, simply do something like this: def function_name(number): return sum(range(1, number+1)) Demo: For example, the number is 10: print(function_name(10)) Output: 55 range() … Read more
Try using a while loop. counter = 0 while counter < 15: if guess == number: break counter += 1 guess = int(input(‘Input your new guess’)) solved How would I end a program in python [closed]
df2 = df1[df1.B.apply(lambda x:x == 1).astype(bool)] All other answers are missing the point (except for Wen’s, which is an ok alternative) 1 solved How do I filter an empty DataFrame and still keep the columns of that DataFrame?
There is no such syntax in Python. The closest to one line you can get is two lines: lst = [1, 1, 2, 2, 2, 3, 3] uniq = [] for i in lst: if i not in uniq: uniq.append(i) # <—- else: continue # <—- print(str(i)) # other useful code Trying to put everything … Read more
The old syntax is no longer valid. Source In Python 2, the syntax for catching exceptions was except ExceptionType:, or except ExceptionType, target: when the exception object is desired. ExceptionType can be a tuple, as in, for example, except (TypeError, ValueError):. This could result in hard-to-spot bugs: the command except TypeError, ValueError: (note lack of … Read more
Regex can do that: s = “asd[123]348dsdk[45]sdhj71[6789]sdfh” import re s_filter=” “.join(re.findall(r”\[(\d+)\]”,s))) print(s_filter) Output: 123 45 6789 Pattern explained: \[ \] are the literal square brackets (\d+?) as as few numbers inside them as capture group re.findall finds them all and ‘ ‘.join(iterable)combines them back into a string. 2 solved Extract all numbers in brackets with … Read more