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How to save a dictionary to a file?
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Python has the pickle module just for this kind of thing.
These functions are all that you need for saving and loading almost any object:
def save_obj(obj, name ):
with open('obj/'+ name + '.pkl', 'wb') as f:
pi...
How to include a quote in a raw Python string
... to figure out. The limitations of different quoting styles. I'm comparing Python's r"raw string" and C#'s @"@-quoted string" and """triple quotes"""
– mpen
Jan 7 '11 at 21:41
2
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Android: Vertical ViewPager [closed]
...e, with a few minor changes to make use of the VerticalViewPager class.
XML
Add the xml layouts for the main activity and for each page (fragment). Note that we use VerticalViewPager rather than the standard ViewPager. I'll include the code for that below.
activity_main.xml
<?xml version="1...
Writing a dict to txt file and reading it back?
...ve to it that is safer. This is called literal_eval and you get it from a Python module called ast.
import ast
def reading(self):
s = open('deed.txt', 'r').read()
self.whip = ast.literal_eval(s)
ast.literal_eval() will only evaluate strings that turn into the basic Python types, so ther...
Class constants in python
In python, I want a class to have some "constants" (practically, variables) which will be common in all subclasses. Is there a way to do it with friendly syntax?
Right now I use:
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How can I get the concatenation of two lists in Python without modifying either one? [duplicate]
In Python, the only way I can find to concatenate two lists is list.extend , which modifies the first list. Is there any concatenation function that returns its result without modifying its arguments?
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Python locale error: unsupported locale setting
Why do I get the following error when doing this in python:
20 Answers
20
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no gravity for scrollview. how to make content inside scrollview as center
...height="wrap_content"
This is how the final code should look like:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ScrollView
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“Unicode Error ”unicodeescape" codec can't decode bytes… Cannot open text files in Python 3 [duplica
I am using python 3.1, on a windows 7 machines. Russian is the default system language, and utf-8 is the default encoding.
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Python: Append item to list N times
This seems like something Python would have a shortcut for. I want to append an item to a list N times, effectively doing this:
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