Tags:

Dictionaries point like lists? Troubles to understand logic behind ‘pointing’


I am aware of the fact that in python lists behave as follows: l1=[1,2] l2=l1 l2[0]=4 print(l1) So the output is [4, 2], not [1,2], as one could assume. When I do this with dictionaries the effect …

Tags:

escaping square brackets from string in dataframe


I have a dataframe where i am try to clean the data from all cols. There are some annomalies in teh data like this: “[n], [ta], [cb]” basically anything in square brackets i want to ignore …

Tags:

Why are CMYK colors in Pillow out of 250 instead of 100?


CMYK color values are typically set as percentages out of 100, for example CMYK(100, 0, 70, 50) makes dark green. However it seems in Pillow one must multiply each value by 2.5 to get the same color. …

Tags:

Remove series of characters in pandas


Somewhat of a beginner in pandas. I am trying to clean data in a specific column by removing a series of characters. Currently the data looks like this: **Column A** (F) Red Apples (F) Oranges …

Tags:

How to pass self attributes to a decorator?


I have a decorator for an object method: def wrapper(func): def _wrapper(self, *a, **kw): print(self.foo) return func(self, *a, **kw) return _wrapper class Bar: foo = 1 @wrapper …

Tags:

pandas.Dataframe equivalent for Pandas.read_csv converters?


This discussion covers the differences between dtypesand converters in pandas.read_csv function. I could not find an equivalent to converters for the pandas.DataFrame constructor in the documentation. …

Tags:

Find bit sequences that do not include specific sequence


I’m trying to find all non-overlap bit sequences satisfied the following constraints: starts with 0 ends with 110 or 111 does not contain 000 Here is my non-regex code in python: def f(s): ans = …

Tags:

Error related to the number of input tensors in Keras


I am inputting series of float32 grayscale images as a list with 16*16 shape to python and try do a regression task with labels inputted from Pandas data frame. Here is the shape of images and df: …

Tags:

Browser Output of HTML/Django/Python shows nothing of Python code


I am following Mosh course (Python for beginner (6 hrs)). In the Django project, When listing the products from the database with HTML/Python/Django code. The output not showing it correctly. In fact, …

Tags:

Python 2.7 convert special characters into utf-8 byes


I have strings that I need to replace into an URL for accessing different JSON files. My problem is that some strings have special characters and I need only these as UTF-8 bytes, so I can properly …