I'm new to the python programming, and I have a question.
I have to write a program that prints a receipt for a restaurant. The input is a list which looks like:
Code:
product1
product3
product8
....
In the other input file there is a list which looks like:
Code:
product1 coffee 5,00
product2 bread 7,50
....
So I need to compare the first list to the second and print the receipt with prices and a total price.
It doesn't look that hard but I just don't know how or where to start. Can somebody help me?
Thank you
Last edited by Scrutinizer; 12-15-2012 at 06:20 AM..
Reason: code tags
If I had a list of numbers in two different files, what would be the fastest and easiest way to find out which numbers in list B are not in list A without reading each number in list B one at a time and using grep thousands of times against list A?
I have two very long lists of numbers and the... (4 Replies)
I have two very large datasets (>100MB) in a simple vertical list format. They are of different size and with different order and formatting (e.g. whitespace and some other minor cruft that would thwart easy regex).
Let's call them set1 and set2.
I want to check set2 to see if it contains... (2 Replies)
hello all,
I wonder if anybody might be able to help with this.
I have file 1 and file2.
Both files may contain thousands of lines that have variable contents.
file1
234GH
5234BTW
89er
678tfg
234
234YT
tfg456
wert
78gt
gh23444 (7 Replies)
Hi.
I am trying to write a Python programme that compares two different text files which both contain a list of words. Each word has its own line
worda
wordb
wordc
I want to compare textfile 2 with textfile 1, and if there's a word in textfile 2 that is NOT in textfile 1, I want to... (6 Replies)
Hi,
I do little bash scripting so sorry for my ignorance.
How do I compare if the two variable not match and if they do not match run a command.
I was thinking a for loop but then I need another for loop for the 2nd list and I do not think that would work as in the real world there could... (2 Replies)
Hi everybody!
I'm trying to delete some elements from a list with two elements on each row agreeing with the elements in another list. Pratically I want a perl script able to take each element of the second list (that is a single column list), compare it with both elements of each row from the... (3 Replies)
I have two files A and B listing ip addresses
and all the ip addresses in B are in A, and A includes other ip addresses
now I want to get the list of the ip addresses that are in A but not in B
how to achieve this? thanks (1 Reply)
Hello, I have a pretty simple question, but I am new to Python and am trying to write a simple program. Put simply, I want to take a text file that looks like this:
11111 22222
33333 44444
55555 66666
77777 88888
and produce two lists, one containing the contents of the left column, one the... (0 Replies)
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I am just trying to concatenate two lists together, but I am not sure what is wrong with my code, it won't run. Thank you for any help.
#!/usr/bin/python
# Takes two lists and returns a list that is the concatenation of both of
# them.
A =
B =
def list_concat( A, B):
print(A)
... (2 Replies)
Discussion started by: totoro125
2 Replies
LEARN ABOUT DEBIAN
isympy
isympy(1)isympy(1)NAME
isympy - interactive shell for SymPy
SYNOPSIS
isympy [-c | --console]
isympy [ {-h | --help} | {-v | --version} ]
DESCRIPTION
isympy is a Python shell for SymPy. It is just a normal python shell (ipython shell if you have the ipython package installed) that exe-
cutes the following commands so that you don't have to:
>>> from __future__ import division
>>> from sympy import *
>>> x, y, z = symbols("xyz")
>>> k, m, n = symbols("kmn", integer=True)
So starting isympy is equivalent to starting python (or ipython) and executing the above commands by hand. It is intended for easy and
quick experimentation with SymPy. For more complicated programs, it is recommended to write a script and import things explicitly (using
the "from sympy import sin, log, Symbol, ..." idiom).
OPTIONS -c shell, --console=shell
Use the specified shell (python or ipython) as console backend instead of the default one (ipython if present or python otherwise).
Example: isympy -c python
FILES
${HOME}/.sympy-history
Saves the history of commands when using the python shell as backend.
BUGS
The upstreams BTS can be found at <http://code.google.com/p/sympy/issues/list> Please report all bugs that you find in there, this will
help improve the overall quality of SymPy.
SEE ALSO ipython(1), python(1)
2007-10-8 isympy(1)