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Read and overwrite a file in Python
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If you don't want to close and reopen the file, to avoid race conditions, you could truncate it:
f = open(filename, 'r+')
text = f.read()
text = re.sub('foobar', 'bar', text)
f.seek(0)
f.write(text)
f.truncate()
f.close()
The functionality will likely also be cleaner and safer ...
How to get current memory usage in android?
...r app. To measure what your APP is doing, and is PERMITTED to do, Use android developer's answer.
Android docs - ActivityManager.MemoryInfo
parse /proc/meminfo command. You can find reference code here: Get Memory Usage in Android
use below code and get current RAM:
MemoryInfo mi = new MemoryI...
How to make my layout able to scroll down?
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Just wrap all that inside a ScrollView:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
&l...
Is it a good idea to use Google Guava library for Android development?
I am involved in the development of Android application which is a rather "thick" mobile client for a Web service. It heavily communicates with the server but also has a lot of inner logic too. So, I decided to use some features of Google Guava library to simplify development process. Here is a li...
How to get UTC time in Python?
...er my answer below. See "datetime objects with no timezone should be considered as a "bug" in the application." julien.danjou.info/python-and-timezones
– Tim Richardson
Nov 29 '19 at 22:50
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What is a unix command for deleting the first N characters of a line?
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do you have any idea of why the pipe doesn't work? when i run essentially that command, 'cut' doesn't print the results to stdout ... if i just run 'tail -f logfile | cut -c 5-' i can see the results ... the problem must be with grep i'm us...
What is __declspec and when do I need to use it?
...or declaring COM interfaces and classes, for example, you use __declspec(uuid), for exporting functions sans a DEF file you use __declspec(dllexport), etc. The full list is quite long.
– Seva Alekseyev
Feb 17 '10 at 21:49
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Python try…except comma vs 'as' in except
...wered Feb 13 '16 at 18:13
pthomaidpthomaid
10622 silver badges44 bronze badges
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Setting Icon for wpf application (VS 08)
... debugger runs your code it uses the vshost.exe version of your build (to aid debugging) which uses the default application icon and NOT the icon set in the applications tab, as this is set for yourapplication.exe
– VisualBean
Mar 6 '15 at 11:04
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Ruby on Rails: How do you add add zeros in front of a number if it's under 10?
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Did you mean sprintf '%02d', n?
irb(main):003:0> sprintf '%02d', 1
=> "01"
irb(main):004:0> sprintf '%02d', 10
=> "10"
You might want to reference the format table for sprintf in the future, but for this particu...