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Python is a dynamically and strongly typed programming language whose design philosophy emphasizes code readability. Two significantly different versions of Python (2 and 3) are in use. Please mention the version that you are using when asking a question about Python.

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Sum values in a Python dict?

How to sume in ptyhon dict when I add the same key? d = {'key1':10,'key2':14,'key3':47} d['key1'] = 20 I would get sume of key1 - 30 It is possible?
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Python Bottle how to pass parameter as json

I created an api for openerp using bottle It works well while access using browser I don't know how to pass it as json parameters The Problem is how can i call using api and pass json parameters ...
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If I send a a Signal from a function, what should the “sender” argument be?

If I send a Signal from a module function (a django view function as it happens), that is not inside a Class, it's not obvious (to me) what the sender should be - if anything? Is sender=None ...
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9 views

Set color to be used for an array masked values plotted with matplotlib contourf

When I plot an array with masked values, using matplotlib countourf, the masked values appear white. I want them to appear grey. I tried the set_bad method, but it seems countourf doesn't recognize ...
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0answers
31 views

Does anyone knows which is the best book for learning Python? [closed]

I know a l'il bit of C++, but now I am thinking to learn Python as well. So, is there any good book that teaches all the concepts of Python from the ground? Thanks, in advance!
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Preserve exif data of image with PIL

When I try to resize (thumbnail) an image using PIL, the exif data is lost. What do I have to do preserve exif data in the thumbnail image? When I searched for the same, got some links but none seem ...
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1answer
27 views

Python: Special characters encoding

This is the code i am using in order to replace special characters in text files and concatenate them to a single file. import os import codecs dirpath = "C:\\Users\\user\\path\\to\\textfiles" ...
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0answers
5 views

resize wx.ListCtrl after creation

so I have a listctrl created and added to sizer. import wx class myFrame(wx.Frame): def __init__(self): wx.Frame.__init__(self, parent=None) panel1=wx.Panel(self) ...
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loop http client python , twisted

I have A simple Client which sends a request to server and receives a response : from StringIO import StringIO from twisted.internet import reactor from twisted.internet.protocol import Protocol ...
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3answers
30 views

writing multiple out files from for loop

out_file = open('result.txt', 'w') A = [1,2,3,4,5,6,7,8,9,10] B = [11,12,13,14,15] for a in A: for b in B: result = a + b print (result, file = out_file) out_file.close() The ...
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1answer
17 views

synchronize access to python object

I am looking for a general and simple way to synchronize the methods of a python class that does not use asynchronous calls by itself. Some possibilities come to my mind: First, the use of decorators ...
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1answer
9 views

Creating a sparse index with pymongo

I need to create a sparse index from the python script using pymongo. It seems like both collection.create_index and collection.ensure_index don't support sparse option. According to the mongodb ...
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1answer
35 views

How Could Python iterate the directoriy and detect the new files?

How can I iterate all files and subdirs in a Dir, and can detect new file when put there? Thank you for your help!
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0answers
11 views

How to customise Django admin for subclasses depending of its type?

I have a simple inheritance at one of the models class ParentClass(models.Model): attribute1 = models.CharField() attribute2 = models.CharField() ...... child_type_choices = (ChildClass1, ...
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0answers
11 views

selenuim python bindings - mouse over action

Related to selenuim python bindings - mouse over action Hi all, Tried this code to perform hover action,still not working from selenium import webdriver from selenium.webdriver.common.action_chains ...

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