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Are delphi variables initialized with a value by default?
...ables in procedures and methods are not initialized in Win32 Delphi; their content is undefined until you assign them a value in code.
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How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
...st that column. in this case I'm using inplace=True to actually change the contents of df.
In [12]: df[1].fillna(0, inplace=True)
Out[12]:
0 0.000000
1 0.570994
2 0.000000
3 -0.229738
4 0.000000
Name: 1
In [13]: df
Out[13]:
0 1
0 NaN 0.000000
1 -0.494375 ...
How to do a non-greedy match in grep?
...id wildcards.
For m>ex m>ample, to fetch all links to jpeg files from the page content, you'd use:
grep -o '"[^" ]\+.jpg"'
To deal with multiple line, pipe the input through xargs first. For performance, use ripgrep.
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Cron and virtualenv
I am trying to run a Django management command from cron. I am using virtualenv to keep my project sandboxed.
9 Answers
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Installing SetupTools on 64-bit Windows
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Create a file named python2.7.reg (registry file) and put this content into it:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.7\Help]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow64...
How does one make a Zip bomb?
This question about zip bombs naturally led me to the Wikipedia page on the topic. The article mentions an m>ex m>ample of a 45.1 kb zip file that decompresses to 1.3 m>ex m>abytes.
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How to launch an Activity from another Application in Android
I want to launch an installed package from my Android application. I assume that it is possible using intents, but I didn't find a way of doing it. Is there a link, where to find the information?
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View/edit ID3 data for MP3 files
...ediaPlayer The project contains an UltraID3Lib folder that is the complete contents of the zip file that used to be available.
– Matt
Jun 7 '18 at 17:01
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How can I create a border around an Android LinearLayout?
...ut
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/black"
android:minHeight="128dp">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="1...
How do I change the tm>ex m>t of a span element using JavaScript?
...For modern browsers you should use:
document.getElementById("myspan").tm>ex m>tContent="newtm>ex m>t";
While older browsers may not know tm>ex m>tContent, it is not recommended to use innerHTML as it introduces an XSS vulnerability when the new tm>ex m>t is user input (see other answers below for a more detailed dis...