comparing two text files storing it in third one python
- by tazim
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 ?
Search Results
Search found 13534 results on 542 pages for 'python 3 x'.
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NetBeans and Python
- by spacemonkey
When I run some python code in NetBeans, which raises an error, the output in NetBeans just gives an error message and no further information, such as line number. Is there any way to fix that?Read the article
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How to get console window width in python
- by umnik700
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 LinuxRead the article
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How to make an executable file in python?
- by aF
Hello, I want to make an executable file (.exe) of my python's application. I want to know how to do it but have this in mind: I use a c++ dll! Do I have to put the dll along side with the .exe or is there some other way? Thanks in advance!Read the article
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In python, why is "import *" bad?
- by Software Enthusiastic
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 RegardsRead the article
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Python new-style classes and __subclasses__ function
- by Fraser Graham
Can somebody explain to me why this works (in Python 2.5) : class Foo(object): pass class Bar(Foo): pass print(Foo.__subclasses__()) but this doesn't : class Foo(): pass class Bar(Foo): pass print(Foo.__subclasses__()) The latter returns "AttributeError: class Foo has no attribute '__subclasses__'" but i'm not sure why. I know this is related to old-style vs. new-style classes but i'm not clear on why that would make this functionality unavailable.Read the article
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python script argument misinterpreted in Hudson Execute Shell step
- by chz
When I run my python script in the shell terminal, it works sudo myscript.py --version=22 --base=252 --hosts="{'hostA':[1],'hostB':[22]}" But when I run in Hudson and Jenkins, using Execute Shell step, somehow, the string --hosts="{'hostA':[1],'hostB':[22]}" is interpreted as sudo myscript.py --version=22 --base=252 '--hosts="{'hostA':[1],'hostB':[22]}"' How do we overcome this so that our script would run in Jenkins and Hudson ? Thank you. SincerelyRead the article
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change file descriptor for socket in python
- by Dani
Hello everybody I'm trying to manually create the file descriptor associated with a socket in python and then loaded directly into memory with mmap. Create a file into memory with mmap is simple, but I can not find a way to associate the file with a socket. Anyone know how? thank you very much.Read the article
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Fast matrix transposition in Python
- by psihodelia
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]].Read the article
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running a python script on a remote computer
- by Richard
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.Read the article
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Worst aspect of Python for a newbie
- by schickb
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.Read the article
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How to share a dictionary between multiple processes in python without locking
- by RandomVector
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.Read the article
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Python bitoperators
- by Neelima
What do the bit operators like AND(&),OR(|),XOR(^) in python do behind the screen? What do they calculate? I cannot understand the results they give when used in a program? 30&45 yields 12. How can we relate these three? 30|45 yields 63. How are these three related? Please answer this...Read the article
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python: list manipulation
- by Jason S
I have a list L of objects (for what it's worth this is in scons). I would like to create two lists L1 and L2 where L1 is L with an item I1 appended, and L2 is L with an item I2 appended. I would use append but that modifies the original list. How can I do this in Python? (sorry for the beginner question, I don't use the language much, just for scons)Read the article
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Python to extract data from a file
- by user297003
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.Read the article
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Scientific Plotting in Python
- by user100046
I have a large data set of tuples containing (time of event, latitude, longitude) that I need to visualize. I was hoping to generate a 'movie'-like xy-plot, but was wondering if anyone has a better idea or if there is an easy way to do this in Python? Thanks in advance for the help, --LeoRead the article
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Python templates for huge HTML/XML
- by newtover
Hello, Recently I needed to generate a huge HTML page containing a report with several thousand row table. And, obviously, I did not want to build the whole HTML (or the underlying tree) in memory. As result, I built the page with the old good string interpolation, but I do not like the solution. Thus, I wonder whether there are Python templating engines that can yield resulting page content by parts.Read the article
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Python: Run a progess bar and work simultaneously?
- by DanielTA
I want to know how to run a progress bar and some other work simultaneously, then when the work is done, stop the progress bar in Python (2.7.x) import sys, time def progress_bar(): while True: for c in ['-','\\','|','/']: sys.stdout.write('\r' + "Working " + c) sys.stdout.flush() time.sleep(0.2) def work(): *doing hard work* How would I be able to do something like: progress_bar() #run in background? work() *stop progress bar* print "\nThe work is done!"Read the article
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python-like Java IO library?
- by drozzy
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!Read the article
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Python syntax error: can't assign to operator in module but works in interpreter
- by mzee
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.Read the article
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Python: read streaming input from subprocess.communicate()
- by Heinrich Schmetterling
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.Read the article
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Python for loop question
- by Joe Dunk
I was wondering how to achieve the following in python: for( int i = 0; cond...; i++) if cond... i++; //to skip an run-through I tried this with no luck. for i in range(whatever): if cond... : i += 1Read the article
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Counting the number of messages in an e-mail account with python
- by terabytest
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.Read the article
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Running a python script for a user-specified amount of time?
- by Rob
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.Read the article
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Is there YAPE::Regex::Explain alternative to python?
- by S.Mark
Is there perl's YAPE::Regex::Explain alternative to python? Which could do \w+=\d+|\w+='[^']+' to explanations like this NODE EXPLANATION -------------------------------------------------------------------------------- \w+ word characters (a-z, A-Z, 0-9, _) (1 or more times (matching the most amount possible)) -------------------------------------------------------------------------------- = '=' -------------------------------------------------------------------------------- \d+ digits (0-9) (1 or more times (matching the most amount possible)) -------------------------------------------------------------------------------- | OR -------------------------------------------------------------------------------- \w+ word characters (a-z, A-Z, 0-9, _) (1 or more times (matching the most amount possible)) -------------------------------------------------------------------------------- =' '=\'' -------------------------------------------------------------------------------- [^']+ any character except: ''' (1 or more times (matching the most amount possible)) -------------------------------------------------------------------------------- ' '\''Read the article
