[Solved] merge list of nested list to a single list which has lakhs of data python [duplicate]

from itertools import chain l = [[‘password’, ‘_rev’, ‘_id’, ‘username’], [‘password’, ‘_rev’, ‘_id’, ‘username’, ‘name’], [‘password’, ‘_rev’, ‘_id’, ‘username’],[‘password’, ‘_rev’, ‘_id’, ‘username’,’country’]] list(set(chain(*l))) Output – [‘username’, ‘_rev’, ‘_id’, ‘name’, ‘password’, ‘country’] solved merge list of nested list to a single list which has lakhs of data python [duplicate]

[Solved] Python list or dict?

Yes, it is a list. More precisely, it is a list object, containing a sequence of dict objects. You can run type(temp) to know the type of that object. 0 solved Python list or dict?

[Solved] Program that compares files [closed]

Something like this (I did not check syntax): with open(“file1.txt”,”r”) as f1: with open(“file2.txt”,”r”) as f2: for line1, line2 in zip(f1.readlines(), f2.readlines()): print(line1 + line2) 4 solved Program that compares files [closed]

[Solved] When source_address of python socket.create_connection is used? [closed]

My question is clear enough. Now, I know the answer. I know how to inspect source code, I read the source code of method socket.create_connection(address[, timeout[, source_address]]), I asked for source_address, it’s all about binding. I have this question because I am a beginner, I have no background knowledge of socket programming, so I find … Read more

[Solved] Getting the line in which occurrence of words in files appear? [closed]

There are a variety of ways you could do this; I think this is the most straightforward: def search_file(filename, searchword): my_file = open(filename) output_file = open(‘fieldsModified.txt’, ‘w+’) for i, line in enumerate(my_file): if searchword in line: print( str(i) + ‘ – ‘ + line ) output_file.write( str(i) + ‘ – ‘ + line ) my_file.close() … Read more

[Solved] Why do round() and math.ceil() give different values for negative numbers in Python 3? [duplicate]

The functions execute different mathematical operations: round() rounds a float value to the nearest integer. If either of the two integers on either side are equal distance apart, the even number is picked. Here, the nearest integer is always -6; for -5.5 the nearest even integer is -6, not -5. math.ceil() returns the smallest integer … Read more

[Solved] Search for a local html file by name

In Python 2.x, this could be done as follows: from bs4 import BeautifulSoup filename = raw_input(‘Please enter filename: ‘) with open(filename) as f_input: html = f_input.read() soup = BeautifulSoup(html, “html.parser”) print soup solved Search for a local html file by name

[Solved] python switching boolean between classes

I’m sure that’s what you want, but we never know : class bolt(): def __init__(self): self.thing = False def tester(self): self.thing = True class classtwo(): def __init__(self): self.my_bolt = bolt() self.my_bolt.tester() if self.my_bolt.thing: print(“True”) elif not bolt.thing: print(“False”) classtwo() solved python switching boolean between classes

[Solved] python numpy arange dtpye? why converting to integer was zero

First let’s skip the complexity of a float step, and use a simple integer start and stop: In [141]: np.arange(0,5) Out[141]: array([0, 1, 2, 3, 4]) In [142]: np.arange(0,5, dtype=int) Out[142]: array([0, 1, 2, 3, 4]) In [143]: np.arange(0,5, dtype=float) Out[143]: array([0., 1., 2., 3., 4.]) In [144]: np.arange(0,5, dtype=complex) Out[144]: array([0.+0.j, 1.+0.j, 2.+0.j, 3.+0.j, … Read more

[Solved] creating an instance in a for loop

dir() produces a sorted list of names; these are just strings. They are not references to the actual objects. You can’t apply a call to a string. Use the globals() dictionary instead, this gives you a mapping with both the names and the actual objects: for name, obj in globals().items(): if not name.startswith(‘__’): print “name … Read more

[Solved] How do you put words into a 3×3 grid using python [duplicate]

import random words = [“a”, “b”, “c”, “d”, “e”, “f”, “g”, “h”, “i”] random.shuffle(words) grouped = [words[i:i+3] for i in range(0, len(words), 3)] for l in grouped: print “”.join(“{:<10}”.format(x) for x in l) Output: e h b i c g a d f Remove the random.shuffle(words) line if you need the original a,b,c,d,etc order. solved … Read more