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Replies |
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Thread: Python Style and Naming Variables
Post: Python Style and Naming Variables
| Please consider the following Python code:
def my_sum(array):
ret = 0
for i in range(len(array)):
ret += array[i]
return ret
array = [ 1,2,3,4]
print( "sum is " + str(my_sum(array... |
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rsherry8 |
General Coding Help |
3 |
2,226 |
Jun-07-2021, 09:00 PM |
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Thread: Adding a new column to a Panda Data Frame
Post: Adding a new column to a Panda Data Frame
| Please consider the following Python code:
import pandas as pd
data = {
"l1": [50, 100, 150, 200, 250, -350, 450],
"l2": [100, 120, 150, 190, 240, 200, 500],
}
#load data into a DataFrame objec... |
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rsherry8 |
Data Science |
2 |
2,133 |
Jun-05-2021, 12:30 PM |
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Thread: Error checking and a call to read_cvs
Post: RE: Error checking and a call to read_cvs
| I updated the code based upon what you suggested. However, I am still not getting the line number of the bad input line in the error message.
(May-08-2021, 04:16 PM)Larz60+ Wrote: Quote:I tired what... |
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rsherry8 |
Data Science |
4 |
2,364 |
May-08-2021, 08:33 PM |
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Thread: Error checking and a call to read_cvs
Post: RE: Error checking and a call to read_cvs
| I tired what you suggested and it did not matter.
The variables path1 and path2 hold the correct values. The file is being opened correctly. The file is missing a comma. The program should and is pro... |
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rsherry8 |
Data Science |
4 |
2,364 |
May-08-2021, 01:09 AM |
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Thread: Error checking and a call to read_cvs
Post: Error checking and a call to read_cvs
| Please consider the following function:
import pandas as pd
def read_input(path1, path2):
"""Concat two paths/strs; yields pandas.DataFrame of indicated file."""
full_input_path = Path(path1... |
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rsherry8 |
Data Science |
4 |
2,364 |
May-07-2021, 07:20 PM |
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Thread: What does and do
Post: RE: What does and do
| When I execute the following statement:
type( 3 and 4 )It says the expression is int.
(Apr-28-2021, 11:53 AM)Yoriz Wrote: and
True if both the operands are true.
print(0 and 0)
print(0 and 1)
prin... |
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rsherry8 |
General Coding Help |
3 |
2,059 |
Apr-28-2021, 11:59 AM |
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Thread: What does and do
Post: What does and do
| Please consider the following Python expression where a and b have integer values.
a and b
I claim that value of this expression is 0, if a is 0. If a is non-zero then the value of this expressi... |
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rsherry8 |
General Coding Help |
3 |
2,059 |
Apr-28-2021, 11:25 AM |
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Thread: Using a Proxy Server
Post: RE: Using a Proxy Server
| snippsat,
Thanks for the response and your code does work for me. What I am wondering is, how long do these proxy servers stay up? Do I need to change the proxy server every day?
Bob |
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rsherry8 |
Web Scraping & Web Development |
12 |
24,917 |
Jul-15-2020, 03:54 PM |
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Thread: Using a Proxy Server
Post: Using a Proxy Server
| Please consider the following python program.
import requests
url = 'https://washingtonpost.com/'
proxy = {
"https": "https://202.29.237.212:3128",
"http": "http://202.29.237.212:31... |
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rsherry8 |
Web Scraping & Web Development |
12 |
24,917 |
Jul-15-2020, 01:11 PM |
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Thread: Class and Operators in Python
Post: Class and Operators in Python
| Please consider the following Python code fragment:
import math
class Fraction:
def __init__(self,num,den):
if den < 0:
num = -num
den = -den
gcd =... |
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rsherry8 |
General Coding Help |
1 |
1,997 |
May-27-2020, 06:53 PM |
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Thread: Help with Sorting
Post: RE: Help with Sorting
| j.crater and buran,
Thanks for the response. Your solution works and you taught me something but is there a way to specify the comparison function that sort function uses. For example, if I wanted al... |
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rsherry8 |
General Coding Help |
6 |
3,948 |
Jan-28-2018, 05:38 PM |
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Thread: Help with Sorting
Post: RE: Help with Sorting
| Thank you for the response. However, your code sorts based upon the number, not the absolute value of the number. Is there a way for me to pass a comparison function to the sort (or sorted) in Python?... |
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rsherry8 |
General Coding Help |
6 |
3,948 |
Jan-28-2018, 04:44 PM |
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Thread: Help with Sorting
Post: Help with Sorting
| I am trying to understand how to sort an array in Python 3.x using the bulit in sort function. So I wrote the following code. However, it did does not work.
a = [1,-2,3,-4,5,-6]
sorted(a, cmp... |
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rsherry8 |
General Coding Help |
6 |
3,948 |
Jan-28-2018, 03:36 PM |
