python tag

How to INSERT and UPDATE many rows in python pyodbc?

Regardless of the database in pspark or python (I would like you to let me know around mssql and postgreSQL), you need to insert or update coding for each row.However, Spark does not support update, s...

I have a question regarding the data type.

Hello, everyone I'm a beginner at coding.I'm getting data from the website Part of the data is contained in non-numeric characters.For example, all other data are float types, such as 2.4 and 12.7, bu...

How to receive multiple Python beginners and process them

As shown in the picture, use the parameter as a variable factor in the function. When you receive input.split so that you can receive multiple inputs. If you print it out, it comes out divided. I don'...

Draw a graph of gravity according to altitude with matplotlib

N = 80z = np.zeros((N,2))for h in range(0,80,1): z[h,0] = h #constants mass_earth = 5.9722*10**(24) #[kg] radius_earth = 6371*10**(3) #[m] universal_gravitational_const = 6.674*10**(-11) #[m^3/kg^-1*s...

For idx, (val, cnt) in enumerate(item_count.iteritems(),1): This code question

I have a question about the classification prediction code. TypeError: only size-1 arrays can be converted to Python scalars

After learning and storing the classification model, you want to apply new data to the model.I brought new data and completed the padding step, but I don't know how to apply multiple lists at once, so...

I'd like to ask you how to load a file with Python replace.

Sorry for the basic question.In the Python text cleaning process, change the contents one by one as shown below df['sentence'] = df[sentence].str.replace (ballpoint pen, pen)df['sentence'] = df[senten...

I made a calculator using Python tkinter, but an error appears. 'NoneType' object has no attribute 'configure'

I'm sorry to attach the picture.I made a calculator using tkinterRun and enter a value.AttributeError: 'NoneType' object has no attribute 'configure'An error appears. I think there is a problem with ....

I want to use Python instance as a variable in the method.

If you answer my question, I will never forget this kindness.My question is, to sum up,I want to use the instance as a variable in the method.For example, class Marine: def __init__(self): self.healt...

Python bigO question

def solution(number, k): num_s = str(number) answer = '' if k == 0: return number list1 = [] list_a = [] list_temp = [] for i in range(len(str(number))): list1.append(int(num_s[i])) num1 = len(list1...