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Django gives Bad Request (400) when DEBUG = False

...names, not urls. Leave out the port and the protocol. If you are using 127.0.0.1, I would add localhost to the list too: ALLOWED_HOSTS = ['127.0.0.1', 'localhost'] You could also use * to match any host: ALLOWED_HOSTS = ['*'] Quoting the documentation: Values in this list can be fully qual...
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Maven check for updated dependencies in repository

...lable: [INFO] org.apache.maven:maven-artifact ........................ 2.0 -> 2.0.9 [INFO] org.apache.maven:maven-plugin-api ...................... 2.0 -> 2.0.9 [INFO] org.apache.maven:maven-project ....................... 2.0.2 -> 2.0.9 [INFO] org.codehaus.plexus:plexus-utils ........
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Making heatmap from pandas DataFrame

...5, 4)), index=index, columns=columns) plt.pcolor(df) plt.yticks(np.arange(0.5, len(df.index), 1), df.index) plt.xticks(np.arange(0.5, len(df.columns), 1), df.columns) plt.show() This gives: share | ...
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Sending a message to nil in Objective-C

As a Java developer who is reading Apple's Objective-C 2.0 documentation: I wonder what " sending a message to nil " means - let alone how it is actually useful. Taking an excerpt from the documentation: ...
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Auto Scale TextView Text to Fit within Bounds

... From June 2018 Android officially started supporting this feature for Android 4.0 (API level 14) and higher. Check it out at: Autosizing TextViews With Android 8.0 (API level 26) and higher: <?xml version="1.0" encoding="utf-8"?&g...
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Regex to check whether a string contains only numbers [duplicate]

... Mike SamuelMike Samuel 106k2626 gold badges195195 silver badges228228 bronze badges ...
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Replace Default Null Values Returned From Left Outer Join

I have a Microsoft SQL Server 2008 query that returns data from three tables using a left outer join. Many times, there is no data in the second and third tables and so I get a null which I think is the default for left outer join. Is there a way to replace the default values in the select stateme...
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Set scroll position

... You can use window.scrollTo(), like this: window.scrollTo(0, 0); // values are x,y-offset share | improve this answer | follow | ...
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What's the difference between Cache-Control: max-age=0 and no-cache?

The header Cache-Control: max-age=0 implies that the content is considered stale (and must be re-fetched) immediately, which is in effect the same thing as Cache-Control: no-cache . ...
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Are there any O(1/n) algorithms?

...he following one: def get_faster(list): how_long = (1 / len(list)) * 100000 sleep(how_long) Clearly, this function spends less time as the input size grows … at least until some limit, enforced by the hardware (precision of the numbers, minimum of time that sleep can wait, time to proce...