Hi,
I need to compare two files and redirect the different lines to third file. I know using diff command i can get the difference . But, is there any way of doing it in python ?
Is there any fast method to make a transposition of a rectangular 2D matrix in Python (non-involving any library import).? Say, if I have an array X=[[1,2,3], [4,5,6]] I need an array Y which should be a transposed version of X, so Y=[[1,4],[2,5],[3,6]].
Is there a way in python to programmatically determine the width of the console? I mean the number of characters that fits in one line without wrapping, not the pixel width of the window.
Edit
Looking for a solution that works on Linux
It is recommended to not to use import * in python. Can anyone please share the reason for that, so that I can avoid it doing next time.
Thanks and Regards
Hello all, I have a python script and am wondering is there any way that I can ensure that the script run's continuously on a remote computer? Like for example, if the script crashes for whatever reason, is there a way to start it up automatically instead of having to remote desktop. Are there any other factors I have to be aware of? The script will be running on a window's machine.
I need to share a huge dictionary (around 1 gb in size) between multiple processs, however since all processes will always read from it. I dont need locking.
Is there any way to share a dictionary without locking?
The multiprocessing module in python provides an Array class which allows sharing without locking by setting
lock=false
however There is no such option for Dictionary provided by manager in multiprocessing module.
Does anybody know any module in Python that computes the best bi-partite matching?
I have tried the following two:
munkres
hungarian
However, in my case, I have to deal with non-complete graph (i.e., there might not be an edge between two nodes), and therefore, there might not be a match if the node has no edge. The above two packages seem not be able to deal with this.
Any advise?
I know this question may well be the silliest question you've herd today, but to me it is a big question at this stage of my programming learning.
Why is the second empty line needed in this Python code? What does that line do?
print 'Content-Type: text/plain'
print ''
print 'Hello, world!'
Hi, I am new to python.
I am trying to extract the text between that has specific text file:
----
data1
data1
data1
extractme
----
data2
data2
data2
----
data3
data3
extractme
----
and then dump it to text file so that
----
data1
data1
data1
extractme
---
data3
data3
extractme
---
Thanks for the help.
I have a string which is like this:
this is "a test"
I'm trying to write something in Python to split it up by space while ignoring spaces within quotes. The result I'm looking for is:
['this','is','a test']
PS. I know you are going to ask "what happens if there are quotes within the quotes, well, in my application, that will never happen.
I'm wondering specifically what experienced programmers thought when they started developing in Python. I'm sure the answer depends on your background, but my own personal answer is the conversion of basically anything in the language to a True/False value in boolean contexts.
Resulting in "oddities" like:
if x:
not meaning the same thing as:
if x == True:
I understand why, but it bugs me, and I certainly had to think about it a bit when I first ran into it.
I'm using Python's subprocess.communicate() to read stdout from a process that runs for about a minute. How can I print out each line of that process's stdout in a streaming fashion, so that I can see the output as it's generated, but still block on the process terminating before continuing? subprocess.communicate() appears to give all the output at once.
I have a string a and I would like to split it in half depending on its length, so I have
a-front = len(a) / 2 + len(a) % 2
this works fine in the interpreter but when i run the module from the command line python gives me a SyntaxError: can't assign to operator. What could be the issue here.
Hi, is there any way, in Python, to have access to an e-mail account (I'll need this for gmail but better if any works) and be able to see the number of messages in the inbox (maybe even unread messages only)?
Thank you.
Java is not my main programming language so I might be asking the obvious.
But is there a simple file-handling library in Java, like in python?
For example I just want to say:
File f = Open('file.txt', 'w')
for(String line:f){
//do something with the line from file
}
Thanks!
I am trying to create my own class of dictionary in python 3 which has a field of dict variable and setitem and getitem methods. Though, it doesnt work for some reason. Tried to look around but couldn't find the answer.
class myDictionary:
def __init(self):
self.myDic={}
def __setitem__(self, key, value):
self.myDic[key]=value
I'm getting:
'myDictionary' object has no attribute 'myDic'
Any ideas? :)
Hi there,
I'm trying to find information on different ways to traverse an object tree in python.
I don't know much about the language in general yet, so any suggestions/techniques would be welcome.
Thanks so much
jml
I want to be able to specify multiple name=value lines in the INI file using boost::program_options. Something like
[list.names]
name=value
name=value2
name=value3
Is there a way to achieve this with boost::program_options? I get a multiple occurrences error if I try it
If not, what other libraries are available?
Sorry, this is probably a terrible question. I've JUST started learning python today. I've been reading a Byte of Python. Right now I have a project for Python that involves time. I can't find anything relating to time in Byte of Python, so I'll ask you:
How can I run a block for a user specified amount of time and then break?
For example (in some pseudo-code):
time = int(raw_input('Enter the amount of seconds you want to run this: '))
while there is still time left:
#run this block
or even better:
import sys
time = sys.argv[1]
while there is still time left:
#run this block
Thanks for any help. Also, additional online guides and tutorials would be much appreciated. I really like Byte of Python. Dive into Python can't quite hold my attention, though. I suppose I should suck it up and try harder to read that one.
Is there any existing Python library that can validate data in Excel format? Or what kind of keyword should I use to search such an open source project? Thanks.
Hi
I'm a beginner programmer, pretty new 2 it
Basically is there any alternatives to the print statement for output in Python, and how can I format my output text to be color-coded?
Thanks