Introduction Image Steganography is a technique used to hide data within an image file. It is a form of security through obscurity, where the data is hidden in plain sight. In order to apply Image Steganography, the image must first be converted to binary. This post will discuss how to convert an image to binary … Read more
A simple use of flat: In [410]: res = np.zeros((2,3), dtype=int) In [411]: res Out[411]: array([[0, 0, 0], [0, 0, 0]]) In [413]: res.flat[::2]=1 In [414]: res Out[414]: array([[1, 0, 1], [0, 1, 0]]) In [415]: res.ravel() Out[415]: array([1, 0, 1, 0, 1, 0]) flat is a variant on flatten and ravel. Here I use … Read more
I really suggest you to take a look over the documentation. A simple loop would solve your problem: a = [1, 2, 3, 4, 5] results = [] for i in range(len(a)-1): results.append((a[i]+a[i+1])/2) print(results) Output: [1.5, 2.5, 3.5, 4.5] 1 solved Very basic Riemann sum in Python
Problem is you are trying to send a array that is a python list. At first you need to convert it into nampy array. import numpy as np py_list = [439, 301, 481, 194, 208, 415, 147, 502, 333, 86, 544, 353, 229] convert_numpy = np.array(py_list ) sent = sent[np.convert_numpy,:] and for 1st line [439 … Read more
Any break statement always breaks to the nearest outer loop so in this case, it will break to the while loop solved Which loop does the break statement break?
This is actually a great application for a python list comprehension one-liner! my_str=”123456781234567812345678″ splits=[my_str[x:x+8] for x in range(0,len(my_str),8)] //splits = [“12345678″,”12345678″,”12345678”] Let me know if you have any questions. 3 solved How can I split a string in Python? [duplicate]
See this. I had a datframe and it showed me like this, but the datframe was one intact data frame… solved Merges and joins in pandas
You only set content_type when your form is valid: if comment_form.is_valid(): # … content_type = ContentType.objects.get_for_id(content_type_id) # … else: print(comment_form.errors) So when comment_form.is_valid() is false, the variable is never set. You have the same issue with object_id_data and content_data. Perhaps you need to re-think what should be returned when the form is not correct? It … Read more
Your question is not really specific. Basically both for loops you are mentioning are doing the same thing. for i in range(10): print(i) gives back 1 2 … 9 the same is achieved by [print(i) for i in range(10)] This is preferred if you have a very short loop and you want your code to … Read more
You are missing some important parts here. You need to configure the menu first and you also need to add the cascade label. Take a look at this code. import tkinter def hey(): print(“hello”) def myNew(): # you forgot to use tkinter.Label here. mlabel = tkinter.Label(root, text=”yo”).pack() root = tkinter.Tk() root.title(“Wizelane”) root.geometry(‘400×80+350+340’) my_menu = tkinter.Menu(root) … Read more
Try this, this worked fine for me def my_func(): name=raw_input(“Please input your name? “) print(“Hello,”, name) year=raw_input(“Please input your birth year? “) try: age=2007-int(year) if age <= 25: print(“Welcome home! You have 5 chances to win the prize. “) for i in range (1, 5): luckynumber=input(“Please input an random number? “) if int(luckynumber) == 66: … Read more
You can do the following >>> from itertools import chain >>> a=[[1,2,3],[4,5],[6]] >>> b=[] >>> for index, item in enumerate(a): … b.extend([[i, j] for i in item for j in chain.from_iterable(a[index+1:])]) >>> b [[1, 4], [1, 5], [1, 6], [2, 4], [2, 5], [2, 6], [3, 4], [3, 5], [3, 6], [4, 6], [5, 6]] … Read more
You append numpy array to a list, so you got 2D. Try this import numpy as np a, b, c, d, e = (np.random.randint(0,15,size=7) for i in range(5)) print(a,b,c,d,e) solved Printing random 1-D arrays in python
Introduction This question is a duplicate of a previously asked question. This post provides an introduction to the Python programming language and how to use it to get pairs of a list. Python is a powerful and versatile programming language that can be used to solve a variety of problems. It is easy to learn … Read more
Introduction Python functions are a powerful tool for writing code that can be reused and adapted for different tasks. They allow you to define a set of instructions that can be executed with a single line of code. When defining a function, you can specify the number of arguments that must be passed to the … Read more