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  • pdftotext can't find any of the files to convert when called within a python script

    - by hatorade
    i have a python script which keeps crashing on: subprocess.call(["pdftotext", pdf_filename]) the error being: OSError: [Errno 2] No such file or directory the absolute path to the filename (which i am storing in a log file as i debug) is fine; on the command line, if i type pdftotext <pdf_filename_goes_here> it works for any of the alledgedly bad file names. but when called using subprocess in python i keep getting that error. what is going on???

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  • Official multiple python versions on the same machine?

    - by drozzy
    Is there an official documentation on python website somewhere, on how to install and run multiple versions of python on the same machine? On linux? I can find gazillions of blog posts and answers - but I want to know if there is a "standard" official way of doing this? Or is this all dependent on OS?

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  • python: simple example for a python egg with a one-file source file?

    - by Jason S
    I'm not quite sure how to build a really simple one-file source module. Is there a sample module out there one the web somewhere which can be built as a python .egg? From the setuptools page it looks pretty simple, you just have your setup.py file and then at least one other .py file somewhere, and I can build an .egg file OK, and even install it using easy_install, but I can't seem to import the file from within python. (note: using 2.6.4)

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  • Alternative to zc.buildout that runs on Python3

    - by srid
    My project uses buildout to do primarily two things: automatically fetch dependencies and create scripts; and setup cron jobs (on deployment machines) using the usercrontab buildout recipe. But buildout is not yet available for Python 3. So I would like to consider alternatives for buildout. I know that both virtualenv and pip work on Python 3 - but what is the preferred tool to automate the build toolchain (of creating virtualenv, and automatically installing/upgrading deps)? There is fabric, paver, and so on. What is your preferred tool of choice in this case? It must work seamlessly on both Windows and *nix.

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  • Idiomatic Python: 'times' loop

    - by perimosocordiae
    Say I have a function foo that I want to call n times. In Ruby, I would write: n.times { foo } In Python, I could write: for _ in xrange(n): foo() But that seems like a hacky way of doing things. My question: Is there an idiomatic way of doing this in Python?

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  • Changing python interpreter for emacs

    - by sam
    Emacs uses an older version of python(2.3) i have for the default python mode, is there a way for me to tell emacs to use the newer version that i have in my home directory? btw I'm using a red hat distro and dont have root privileges.

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  • Porting Perl to Python.

    - by The Rook
    I am wondering if there are any tips or tricks to converting perl into python. It would be nice if there was a script like python's 2to3. Or perhaps some compatibility libraries.

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  • Type hinting in Python

    - by pingvinus
    I'm studying Python after a lot of PHP experience and it would be handy to have type-hinting in Python. Looks like eclipse + pydev doesn't support this. Any suggestions? For example, I want my IDE to show function docstrings and types, when I use it, like: def f(x: int) -> int: r"""Adds 3 to x""" return x + 3 f( #and now IDE shows everything about types

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  • sequence and merge jpeg images using python ?

    - by DILi
    im doing a project as part of academic programme.Im doing this in linux platform.I have converted a few pdf files in to html and jpeg images using pdftohtml.now i need to sequence the jpeg images depending on some conditions and to merge them .how can i do this using python?.if anyone can provide any such python script which have done any functions similar to this then it will be very helpful.

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  • Python or Ruby for webbased Artificial Intelligence?

    - by Pieter Kubben
    A new web application may require adding Artificial Intelligence (AI) in the future, e.g. using ProLog. I know it can be done from a Java environment, but I am wondering about the opportunities with modern web languages like Ruby or Python. The latter is considered to be "more scientific" (at least used in that environment), but using Google there seems to be a preliminary ProLog implementation for both. Any suggestions on modern (open source) web languages (like Python or Ruby) in combination with AI?

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  • Python filter/remove URLs from a list

    - by Eef
    Hi. I have a text file of URLs, about 14000. Below is a couple of examples: http://www.domainname.com/pagename?CONTENT_ITEM_ID=100&param2=123 http://www.domainname.com/images?IMAGE_ID=10 http://www.domainname.com/pagename?CONTENT_ITEM_ID=101&param2=123 http://www.domainname.com/images?IMAGE_ID=11 http://www.domainname.com/pagename?CONTENT_ITEM_ID=102&param2=123 I have loaded the text file into a Python list and I am trying to get all the URLs with CONTENT_ITEM_ID separated off into a list of their own. What would be the best way to do this in Python? Cheers

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  • Checkstyle for Python

    - by oneself
    Is there an application similar to Java's Checkstyle for Python? By which I mean, I tool that analyzes Python code, and can be run as part of continuous integration (e.g. CruiseControl or Hudson). After analyzing it should produce an online accessible report which outlines any problems found in the code. Thank you,

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  • Using Complex datatype with python SUDS client

    - by sachin
    hi, I am trying to call webservice from python client using SUDS. When I call a function with a complex data type as input parameter, it is not passed correctly, but complex data type is getting returned correctly froma webservice call. Webservice Type: Soap Binding 1.1 Document/Literal Webserver: Weblogic 10.3 Python Version: 2.6.5, SUDS version: 0.3.9 here is the code I am using: Python Client: from suds.client import Client url = 'http://192.168.1.3:7001/WebServiceSecurityOWSM-simple_ws-context-root/SimpleServicePort?WSDL' client = Client(url) print client #simple function with no operation on input... result = client.service.sopHello() print result result = client.service.add10(10) print result params = client.factory.create('paramBean') print params params.intval = 10 params.longval = 20 params.strval = 'string value' #print "params" print params try: result = client.service.printParamBean(params) print result except WebFault, e: print e try: result = client.service.modifyParamBean(params) print result except WebFault, e: print e print params webservice java class: package simple_ws; import javax.jws.Oneway; import javax.jws.WebMethod; import javax.jws.WebService; import javax.jws.soap.SOAPBinding; public class SimpleService { public SimpleService() { } public void sopHello(int i) { System.out.println("sopHello: hello"); } public int add10(int i) { System.out.println("add10:"); return 10+i; } public void printParamBean(ParamBean pb) { System.out.println(pb); } public ParamBean modifyParamBean(ParamBean pb) { System.out.println(pb); pb.setIntval(pb.getIntval()+10); pb.setStrval(pb.getStrval()+"blah blah"); pb.setLongval(pb.getLongval()+200); return pb; } } and the bean Class: package simple_ws; public class ParamBean { int intval; String strval; long longval; public void setIntval(int intval) { this.intval = intval; } public int getIntval() { return intval; } public void setStrval(String strval) { this.strval = strval; } public String getStrval() { return strval; } public void setLongval(long longval) { this.longval = longval; } public long getLongval() { return longval; } public String toString() { String stri = "\nInt val:" +intval; String strstr = "\nstrval val:" +strval; String strl = "\nlong val:" +longval; return stri+strstr+strl; } } so, as issue is like this: on call: client.service.printParamBean(params) in python client, output on server side is: Int val:0 strval val:null long val:0 but on call: client.service.modifyParamBean(params) Client output is: (reply){ intval = 10 longval = 200 strval = "nullblah blah" } What am i doing wrong here??

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  • Python Macros: Use Cases?

    - by Rick Copeland
    If Python had a macro facility similar to Lisp/Scheme (something like MetaPython), how would you use it? If you are a Lisp/Scheme programmer, what sorts of things do you use macros for (other than things that have a clear syntactic parallel in Python such as a while loop)?

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