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  • Python library for writing JSON piecemealMarch 10

    I'm searching for a Python 2 library for serializing values as JSON that does not require the entire value to be calculated & in memory before serialization. I'd prefer something streaming/event-based (like ijson but in reverse), but I'd also settle

  • How to find unique elements in a list in python? (Without using set)March 10

    Write a function that accepts an input list and returns a new list which contains only the unique elements (Elements should only appear one time in the list and the order of the elements must be preserved as the original list. ). def unique_elements

  • Pack 4 chars into an int (Python)?March 8

    Is it possible to pack 4 chars into an int in python and have it be represented as one value in a bytearray? I'm looking into packing it into a struct, but run into an error if I try something like characters = b'abcd' struct.pack('i',characters) ---

  • Did I do any damage by running "sudo apt-get purge ./python"?February 21

    As you know Ubuntu already has python in it. However, I have downloaded the latest 3.5.1 version's source code and compiled it using ./configure make make test sudo make install My pwd at this moment is /home/SarpSTA/Downloads/Python-3.5.1 I wanted t

  • Simplegui installationFebruary 18

    So... 1) sudo apt-get install python-setuptools 2) sudo apt-get install python-tk 3)sudo easy_install simplegui But the 3rd step doesn't work for me...it says this. Searching for simplegui Reading https://pypi.python.org/simple/simplegui/ No local pa

  • Pattern for requests with long response times?February 8

    We are currently maintaining a homegrown python "web server" where generating the response for some requests can take a very long time mostly due to heavy computations - these requests are basically posts with very long timeouts (think minutes t

  • Why do I need to use labelling when setting fill colour with a python expression in QGIS?

    Why do I need to use labelling when setting fill colour with a python expression in QGIS?January 30

    I'm having problems using a Python function in the expression editor to style a polygon fill in QGIS. I'm trying to use a random colour scheme. However, I need to do this over a series of different maps from different points in history. I need the co

  • General questions about setting up an PyWPS process to process and return shapefilesJanuary 29

    at the moment I'm learning Python in combination with OGR. I'd like to set up a PyWPS process that shall be executed from QGIS via the WPS-plugin. The process should fulfill following tasks: Read an input shapefile, change the shapefile (e.g. add or

  • Python: making a graph of lists [on hold]January 16

    I have this csv file which contains data. It is an upper triangular matrix in the case that the diagonal and all values below the diagonal are zero, the others are positive. I converted this csv file to a list of lists. Now I want to create a weighte

  • How to send keys in an Ajax dropdown

    How to send keys in an Ajax dropdownJanuary 14

    I alredy get the Xpath, but when send keys there is error : Error Traceback (most recent call last): File "C:\Users\Admin\PycharmProjects\Belajar1\Register.py", line 23, in test_register self.email = self.driver.find_element_by_xpath(".//*[

  • How to get link from onclick event using Scrapy?January 9

    I've been using Scrapy for getting content but I am having some trouble getting links from this particular site:Taleo Site Clicking the title takes you to the job description. But the href is set to '#'. And the onclick event is: onclick="javascript:

  • Multiple terminals, multiple commands, lxterminalJanuary 9

    I am working with Python. Writing a script, I am attempting to use os.system() to open a new terminal, create new tabs and run different commands in each respective tab (which appear to run simultaneously). I am familiar with gnome-terminal as it is

  • Resolving ascii codec can't decode byte in position ordinal not in rangeJanuary 8

    I've seen all of the other posts and done quite a bit of research but I am still scratching my head. Illustrating the problem: $ python Python 2.7.6 (default, Mar 22 2014, 22:59:56) [GCC 4.8.2] on linux2 Type "help", "copyright", "

  • How to make a turtle object look at where the mouse has clickedJanuary 7

    I want a program so that the turtle goes to where you click. So far I have this: from turtle import * screen = Screen() turtle = Turtle() screen.onscreenclick(turtle.goto) But the problem is the turtle object just stays facing in the same direction.

  • How do I downgrade sdl_image to 1.2.10?January 6

    I am using pygame to try and make a game. The graphics do not show up right and are distorted. I am using OSX El Capitan. People say that there is a bug that happens on El Capitan. The solution is to downgrade sdl_image to 1.2.10, which is what a lot

  • Response from before_requestJanuary 6

    In my app I am trying to check if user is authorised to access the resource, for example when user requests to url api/proxy. I use before_request to call checking function @hook('before_request') def check_permission(): securityService = SecuritySer

  • Python: Write to new file line January 4

    This question already has an answer here: Python: Write to new file line 3 answers I have been looking around to see if I can find a way to write to a new line in a file every time the user inputs. The basic code is this: while True: f = open(server,

  • python - custom contextmanager decorator for with statementDecember 6

    here's the code... There must be some errors, cause, even though the code seems to work as I want, testing it, the decorated function resulted up to 30 time slower than the original. Decorator: import wrapt @wrapt.decorator class custom_with(object):

  • Jaccard Distance calculation using pdist in scipyDecember 4

    import scipy.spatial.distance as dist Y=[[1,2,3],[2,3,4]] Q=dist.pdist(Y,'jaccard') print Q The following snippet gives jaccard distance as 1 while it should be 0.5. On the other hand if Y=[[1,2,3],[4,2,3]] i.e if ordering is changed output is 0.33.

  • Mapping topics to labels in pythonDecember 3

    I have a file of documents labeled as follows: 101 magical awards hosted two days ago 102 it was a good badminton game where each sides ended up in a tie 101 the awards were hosted by the actor who received critical acclaim for his movie 103 heavy ra

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