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• Matplotlib installation problems

  - by Werner

  Hi, I need to install matplotlib in a remote linux machine, and I am a normal user there. I downlodad the source and run python setup.py build but I get errors, related with numpy, which is not installed, so I decieded to install it first. I download and compile with python setup.py build My question now is, how do I tell to teh matplotlib installation where the numpy files have been installed? Thanks

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• how to find whether a string in a another string..

  - by zjm1126

  a='1234;5' print a.index('s') thr error is : > "D:\Python25\pythonw.exe" "D:\zjm_code\kml\a.py" Traceback (most recent call last): File "D:\zjm_code\kml\a.py", line 4, in <module> print a.index('s') ValueError: substring not found thanks

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• how to send some data to the Thread module on python and google-map-engine

  - by zjm1126

  from google.appengine.ext import db class Log(db.Model): content = db.StringProperty(multiline=True) class MyThread(threading.Thread): def run(self,request): #logs_query = Log.all().order('-date') #logs = logs_query.fetch(3) log=Log() log.content=request.POST.get('content',None) log.put() def Log(request): thr = MyThread() thr.start(request) return HttpResponse('') error is : Exception in thread Thread-1: Traceback (most recent call last): File "D:\Python25\lib\threading.py", line 486, in __bootstrap_inner self.run() File "D:\zjm_code\helloworld\views.py", line 33, in run log.content=request.POST.get('content',None) NameError: global name 'request' is not defined

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• What is wrong with this SimPy installation?

  - by dmindreader

  Alright, I have tried a bunch of times the python setup.py install command from my command prompt, and this is what I'm getting: SCREEN And when trying this: from SimPy.Simulation import * on Idle, I get this: Traceback (most recent call last): File "C:/Python30/pruebas/prueba1", line 1, in <module> from SimPy.Simulation import * File "C:\Python30\SimPy\Simulation.py", line 320 print 'SimPy.Simulation %s' %__version__, ^ SyntaxError: invalid syntax >>>

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• easy, straightforward way to package a python program for debian?

  - by Jeremiah Rose

  i'm having trouble navigating the maze of distribution tools for python and debian; cdbs, debhelper, python-support, python-central, blah blah blah .. my application is a fairly straightforward one - a single python package (directory containing modules and a __init__.py), a script for running the program (script.py) and some icons and menu items (.desktop files). is there a simple straightforward way to make a .deb file out of these, or should i brave the nonsensical tools listed above?

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• django import forms basic doubt

  - by webvulture

  I have seen people writing forms in mdoels or in forms.py? Is it the case I can actually write it anywhere say in blah.py and just import it wherever necessary?

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• A python code to convert a number from any base to the base of 10 giving errors . What is wrong with this code?

  - by mekasperasky

  import math def baseencode(number, base): ##Converting a number of any base to base10 if number == 0: return '0' for i in range(0,len(number)): if number[i]!= [A-Z]: num = num + number[i]*pow(i,base) else : num = num + (9 + ord(number[i])) *pow(i,base) return num a = baseencode('20',5) print a Errors I get are Traceback (most recent call last): File "doubtrob.py", line 19, in <module> a = baseencode('20',5) File "doubtrob.py", line 13, in baseencode if number[i]!= [A-Z]: NameError: global name 'A' is not defined

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• Django: How do I redirect a post and pass on the post data

  - by swisstony

  When processing a POST request in the Django views.py file, I sometimes need to redirect it to another url. This url I'm redirecting to is handled by another function in the same Django views.py file. Is there a way of doing this and maintaining the original POST data?

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• Python: Why do some packages get installed as eggs and some as "egg folders"?

  - by cool-RR

  I maintain a few Python packages. I have a very similar setup.py file for each of them. However, when doing setup.py install, one of my packages gets installed as an egg, while the others get installed as "egg folders", i.e. folders with an extension of "egg". I couldn't figure out what is the difference between them that causes this different behavior. What can it be?

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• Django: How do I redirect a post with the post data

  - by swisstony

  When processing a POST request in the Django views.py file, I sometimes need to redirect it to another url. This url I'm redirecting to is handled by another function in the same Django views.py file. Is there a way of doing this and maintaining the original POST data?

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• Adding an object to another module's globals in python

  - by noam

  I know this is very evil, but is it possible to add an object to another module's globals, something like: #module dog.py import cat cat.globals.addVar('name','mittens') and #module cat.py print name #mittens

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• How do you feed in an entire directory of input files using cat in Unix?

  - by Sam

  I'd like to run a program on a directory of files. I know how to do this with one file, using cat myFile.xml | myProgram.py. How can I run myProgram.py over a folder, say myFolder? Thanks!

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• UnicodeDecodeError when redirecting to file

  - by zedoo

  Hi, I run this snippet twice, in the ubuntu terminal, (encoding set to utf-8) once with ./test.py and then with ./test.py >out.txt: uni = u"\u001A\u0BC3\u1451\U0001D10C" print uni Without redirection it prints garbage. With redirection I get a UnicodeDecodeError. Can someone explain why I get the error only in the second case, or even better give a detailed explanation of what's going on behind the curtain in both cases?

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• How do I write a bash script to restart a process if it dies?

  - by Tom

  I have a python script that'll be checking a queue and performing an action on each item: # checkqueue.py while True: check_queue() do_something() How do I write a bash script that will check if it's running, and if not, start it. Roughly the following pseudo code (or maybe it should do something like ps | grep?): # keepalivescript.sh if processidfile exists: if processid is running: exit, all ok run checkqueue.py write processid to processidfile I'll call that from a crontab: # crontab */5 * * * * /path/to/keepalivescript.sh Thanks in advance.

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• Django's local web server works, but not apaches

  - by tipu

  I've made no changes to the django project after running django-admin.py startproject Twingle When I run the local web server using python manage.py runserver, I can view the splash page telling me everything is working fine. But when I try to visit that project through apache, it fails. You can see the error at http://djaffry.selfip.com:8080/ The exception: Exception Value: No module named Twingle.urls (the project is Twingle)

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• how to get the parent dir location using python..

  - by zjm1126

  this code is get the templates/blog1/page.html in b.py: path = os.path.join(os.path.dirname(__file__), os.path.join('templates', 'blog1/page.html')) but i want to get the parent dir location: a |---b.py |---templates |--------blog1 |-------page.html and how to get the a location thanks

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• need help writing an emacs function

  - by murtaza52

  I want to write an emacs function that does the following - 1) Start a new shell named "abc". 2) Change the dir "/opt/abc" 3) In the dir run a shell command "python abc.py" I have written the following fucntion - (defun abc-server () (interactive) (shell-command "cd /opt/abc/") (shell-command "python abc.py")) The problem with the above - 1) It doesnt start a new shell 2) It doesnt change the dir. 3) When the cmd executes, it opens a browser window, which completely blocks any usage of emacs.

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• how to create application(exe) from python script for linux

  - by Apache

  hi expert, i'm newbie for python programming, i'm having a .py file, now what shall i do so i can create an application from .py file and it can be istall and run in any linux pc, i try to packaging it but its just create .tar file where i need python to run it, is it any to do so, thanks

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• Bypassing import in Python so that I don't have to upload multiple libraries and classes?

  - by Rob

  For example, I have a few python scripts, that link together and some libraries for it that need to be imported. I'm trying to reduce it to only one script. So instead of: import library.py Can I just take the coding from library.py and put into the main script?

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• python interpreter waits for child process to die

  - by Moulik Kallupalam

  Contents of check.py: from multiprocessing import Process import time import sys def slp(): time.sleep(30) f=open("yeah.txt","w") f.close() if __name__=="__main__" : x=Process(target=slp) x.start() sys.exit() In windows 7, from cmd, if I call python check.py, it doesn't immediately exit, but instead waits for 30 seconds. And if I kill cmd, the child dies too- no "yeah.txt" is created. How do I make ensure the child continues to run even if parent is killed and also that the parent doesn't wait for child process to end?

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• How to stop Django "app not found" error?

  - by cml

  When I run python ./manage.py sql grading my django site comes up with: Error: App with label grading could not be found. Are you sure you INSTALLED_APPS setting is correct? I have the app grading with __init__.py and everything, and my INSTALLED APPS is: INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.admin', 'teachline.courses', 'teachline.grading', ) Why isn't this working?

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• 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?

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• Why are filename underscores better than hyphens

  - by Jasie

  From Building Skills in Python: "A file name like exercise_1.py is better than the name execise-1.py. We can run both programs equally well from the command line, but the name with the hyphen limits our ability to write larger and more sophisticated programs." Why?

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• SVN: Recurisvely add files?

  - by Mark

  I'm trying svn add *.py --force As the documentation suggests, but I know for a fact it's missing files nested in deeper folders. Why? Is there a standard way to do this with other unix commands too? */*.py will nab a few more files, but it's kind of a pain in the butt to do this for every possible depth.

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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. Sincerely

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