Please see this question. It’s looks like you need a collection of tuples (value, label) as chooses for the CharField model. In your case, the value and the label are the same. solved Understanding “(item, item) for item in …” [closed]
No need to bother with pandas. Text files are iterable. Just open it, operate on the line (string) and fill a dictionnary. file = “font.txt” with open(file, “r”) as f: dic = dict() for line in f: x = line.strip(“\n”).split(” “) key = int(x[0].strip(“px”)) value = int(x[1]) if key not in dic.keys(): dic[key] = [value] … Read more
What you are asking for cannot be done this way. One way to handle this is to refactor the code, to break out the parts that are used in different parts in separate functions and then just call the parts needed, where needed. In this toy example this could be achieved as: def get_number(): number … Read more
Assuming I understood your question, these should do it: for person in sorted(cat1): print(person, max(cat1.get(person))) result: ben 9 jeff 6 sam 9 then: for person in sorted(cat1, key=lambda x: max(cat1.get(x)), reverse=True): print(person, max(cat1.get(person))) result: ben 9 sam 9 jeff 6 then: for person in sorted(cat1, key=lambda x: sum(cat1.get(x))/len(cat1.get(x)), reverse=True): print(person, sum(cat1.get(person))/len(cat1.get(person))) result: ben 7.666666666666667 sam … Read more
DO NOT DO THIS. Django has a perfectly good and fully documented system for replacing the User model while keeping the authentication system, which has had several years to be tested for security vulnerabilities. Yours is not at all secure and you should not try to do it. 0 solved Custom Django login, can not … Read more
Try this instead: sequence = [] stop = False while not stop: num = int(input()) if num == -1: stop = True else: sequence.append(num) longest = 0 length = 0 for i in range(2, len(sequence)): if (sequence[i-2] + sequence[i-1]) == sequence[i]: length += 1 else: longest = max(longest, length) length = 0 First, I read … Read more
Use a dictionary with the keys as the class names and the value as a dictionary with student names as the keys and a list to store their scores as the value. Then use the json module to json.dump() the data to a file. When you want to add a new score: json.load() the file, … Read more
You will need a SFTP client to read the files. You cant directly replace the path with hostname. You should try something like paramiko for file ready. A quick sample: client= ssh_client.open_sftp() file = sftp_client.open(‘your_filename’) try: for line in file: #Do whatever you want for each line in the file finally: file.close() solved How to … Read more
Here is my fix of your code. def count_primes_in_list(numbers): primes = [] for num in numbers: if num == 2: primes.append(num) else: is_prime = True for i in range(2, num): if num % i == 0: is_prime = False break if is_prime: print (num) primes.append(num) return len(primes) z = [4, 5, 6, 7, 8, 9, … Read more
You were close. Try this: import pandas as pd df = pd.DataFrame({‘a’: [1, 2, 3], ‘b’: [ 4, 5, 2], ‘c’: [2, 4, 5]}) print(df) df = df[[x for _, x in sorted(zip(df.iloc[-1], df.columns), reverse=True)]] print(df) Starting DataFrame: a b c 0 1 4 2 1 2 5 4 2 3 2 5 Columns sorted … Read more
therefore you could simply use a for loop. which looks something like this: for i in range(10): print i 0 solved Splitting up a numbers in Python
first, read the file into a string line by line; then convert the string to a variable. In python, you can do the following i = 0 with open(“file.txt”, “r”) as ins: v = “var”+str(i) for line in ins: exec(v+”=’str(line)'”) i+=1 another approach is to read the lines into a list: with open(“file_name.txt”, “r”) as … Read more
Using Python 2.7.6 this works for me: filename = raw_input(“File Name: “) with open(filename, ‘r+’) as f: text = f.read() f.seek(0) f.write(text.upper()) f.truncate() 2 solved Python converting text file to all caps
Your inner conditionals don’t make sense with the while. And you have a return statement in the loop, so yes, it only looped once. Start with this import math n, count = (1003, 3) print(“N = ” + str(n)) while count > 0: n = math.ceil((n – 5) / 2) # Update this to do … Read more
You have the # lines as a separation between your matrix. So if you loop line by line on your file, you can separate the matrix with this # lines, and built them : file = open(“file.txt”, “r”) lines = file.readlines() At this point, lines is a list. lines[i] is the line n° i+1 as … Read more