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How do I check if a string is valid JSON in Python?

In Python, is there a way to check if a string is valid JSON before trying to parse it? 4 Answers ...
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How to unpack and pack pkg file?

I have a pkg file created by Install Maker for Mac. I want to replace one file in pkg. But I must do this under Linux system, because this is a part of download process. When user starts to download file server must replace one file in pkg. I have a solution how unpack pkg and replace a file but I d...
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What are “signed” cookies in connect/expressjs?

I am trying to figure out what "signed cookies" actually are. There isn't much on the net, and if I try this: 4 Answers ...
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server

This should be dead simple, but I cannot get it to work for the life of me. I'm just trying to connect remotely to my MySQL server. ...
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Does making a struct volatile make all its members volatile?

If I have: 2 Answers 2 ...
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Do you need break in switch when return is used?

I was wondering if I need to use "break" in "switch" function when "return" is used. 7 Answers ...
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PHP function to get the subdomain of a URL

Is there a function in PHP to get the name of the subdomain? 28 Answers 28 ...
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round up to 2 decimal places in java? [duplicate]

I have read a lot of stackoverflow questions but none seems to be working for me. i am using math.round() to round off. this is the code: ...
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Java Synchronized Block for .class

What does this java code mean? Will it gain lock on all objects of MyClass ? 4 Answers ...
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How does @synchronized lock/unlock in Objective-C?

Does @synchronized not use "lock" and "unlock" to achieve mutual exclusion? How does it do lock/unlock then? 5 Answers ...