Print each executed line in Python and Perl programs
- by Vi
I know that "bash -x script.sh" will execute script printing each line before actual execution.
How to make perl and python interpreters do the same?
Search Results
Search found 13534 results on 542 pages for 'python'.
Page 98/542 | < Previous Page | 94 95 96 97 98 99 100 101 102 103 104 105 | Next Page >
-
-
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
-
Are classes in Python in different files?
- by Asaf
Much like Java (or php), I'm use to seperating the classes to files. Is it the same deal in Python? plus, how should I name the file? Lowercase like classname.py or the same like ClassName.py? Do I need to do something special if I want to create an object from this class or does the fact that it's in the same "project" (netbeans) makes it ok to create an object from it?Read the article
-
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
-
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
-
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
-
Split a string by spaces -- preserving quoted substrings -- in Python
- by Adam Pierce
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.Read the article
-
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
-
Python basics: One "empty" line in Python (print ''). What does it do?
- by brilliant
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!'Read the article
-
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
-
Safest python code running
- by Oduvan
How can I protect my web server, if I run custom users code on server. If any user can submit his python source on my server and run it. Maybe some modules or linux tools for close any network and hardware activity for this script. Thank's all for help!Read the article
-
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
-
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
-
Run a remote python script from ASP.Net
- by Jaelebi
I have a python script on a linux server that I can SSH into and I want to run the script on the linux server( and pass it parameters entered by the user) and get the output on an ASP.net webpage running on IIS. How would I be able to do that? Would it be easier if I was running a wamp server? Edit: The servers are in the same internal intranet.Read the article
-
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
-
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
-
[python] traversing an object tree
- by jml
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 jmlRead the article
-
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
-
is a there md5 decrypt function in python ?
- by mekasperasky
i used md5.new() ; md5.update("aaa"),md5.digest() to form a md5 hash of the data "aaa" . How to get back the data using python?Read the article
-
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
-
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
-
Output alternatives in Python
- by Jasper
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? ThanksRead the article
-
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
-
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
-
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
