For questions about the Python module named sys. This tag is also used for questions relating to the Sys namespace - the root namespace for the Microsoft AJAX Library, which contains all fundamental classes and base classes.
Questions tagged [sys]
1100 questions
-2
votes
2 answers
How do I fix argv[1] in Python?
I have a problem with argv[1] in Python 3.8.2. This is my code:
from sys import *
def open_file(filename):
print(filename)
def run():
open_file(argv[1])
run()
And it shows error:
Traceback (most recent call last):
File "*File*", line…
-2
votes
1 answer
fins and move files with path name with python3
I am trying recreate python script from my perl script to find all files with common name model1_r.pdb and them move it to a new folder with newname of their previous existing folder.
This is the python code I wrote;
import os, shutil, glob
# This…
Kay
- 90
- 8
-2
votes
2 answers
Convert JPG to PNG
I have used the below code to
convert JPG into PNG file:
But when i am running this code from the command line terminal using: python a.py "C:\Users\nishant.gupta2\PycharmProjects\jpgtopngconverter\photo" new
The system is giving me the error:
…
nishant gupta
- 15
- 1
- 4
-2
votes
1 answer
How to ignore an error and not stop the script?
I have a working script (Powered by Python 2.7) :
import sys
a=0
b=7
p=0xB12D
x2=0x38F
if (len(sys.argv)>1):
x1=int(sys.argv[1])
if (len(sys.argv)>2):
x2=int(sys.argv[2])
if (len(sys.argv)>3):
p=int(sys.argv[3])
if…
Rozwrcd
- 11
- 3
-2
votes
3 answers
How to store while loop produced string into variable
I want to store all the "o"'s printed by stdout.write function into a a variable which could be accesable any time
I have tried using len function to break loop once it reaches certain amount of strings, but no luck
import time
import sys
while…
Iphunter
- 1
-2
votes
1 answer
Is there any way to iterate over a list of input files in python?
I am trying to create a script that will do a certain iteration over a list of input files. In my case, I will have for example 3 files with a sequence of amino acids and I want to create 1 output file for each of the files. The problem I have now…
Dima Pravdivets
- 1
- 1
-2
votes
2 answers
python read lines in functional way
I need to write a program in a functional way. I have a text and I need to calculate a number of unique words, (for example: "word word, word word?" - has 3 different words, punctuation matters.
I have a code:
import sys
import…
L.Bond
- 37
- 6
-2
votes
1 answer
Script loading data file from command prompt
Kinda new to this, and writing a script that loads in latitudes and longitudes from a CSV file and converts the formatting for another program to read...finally got it all to work.
I was wondering how I might set this up so I could maybe run…
tarnis
- 1
- 3
-2
votes
1 answer
Sys arguments with while
The lines in the files will be top to bottom (one under the other)
I have 2 ".txt" file like this :
#john.txt
hello
my
name
is
John
#jack.txt
second one is like that:
hello
your
name
is
Jack
I will compare this texts line by line but the…
Aybar Taş
- 15
- 1
- 7
-2
votes
2 answers
fileku.write(sys.argv[i+3]+'\n') IndexError: list index out of range
i'm still new in python,i want to create a program that can read/write/append text file depending on the command line argument.
here is my code :
import sys
def prosesfile():
fileku=open(sys.argv[1],sys.argv[2])
if(sys.argv[2] ==…
Cakra1337
- 23
- 4
-2
votes
1 answer
sys.argv : index out of range
I try to run this code
import sys
import numpy as np
filename = sys.argv[1]
X = []
y = []
with open(filename, 'r') as f:
for line in f.readlines():
xt, yt = [float(i) for i in line.split(',')]
X.append(xt)
…
Hoda Fakharzadeh
- 697
- 3
- 7
- 18
-2
votes
2 answers
Why am I getting IndexError in this small python code?
Here is the code.Please help me correct it.
#!/usr/bin/env python
import sys
def print5times(line_to_print):
for count in range(0,5) :
print line_to_print
print5times(sys.argv[1])
when running this code i am getting this…
faust_
- 17
- 5
-2
votes
2 answers
What does this code concerning sys.args mean?
What does the following chunk of code mean? I don't understand the concept of sys.argv. I heard it has something to do with command-line prompts but my vocabulary isn't good enough to understand that. Also the output is strange. I don't understand…
HAMZAH AHMED
- 159
- 5
-2
votes
4 answers
Replacing sys.argv with docopt
I'm working on incorporating some string replacements and currently arguments are passed to my script using sys.argv[i]. I'd like to replace sys with docopt, but I've found the documentation relatively unclear so far.
The way my code currently works…
PhysicistAbroad
- 185
- 1
- 8
-2
votes
1 answer
Handling command-line arguments in Python
I am trying to get parameters from the command line to initialize the following class
import sys
class Test(object):
def __init__(self):
for item in sys.argv:
if item.startswith("-Username"):
self.Username…
Sepehr
- 442
- 1
- 6
- 17