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How can I get useful error messages in PHP?
... error display in the php.ini. By default these are turned off because you don't want a "customer" seeing the error messages. Check this page in the PHP documentation for information on the 2 directives: error_reporting and display_errors. display_errors is probably the one you want to change. If yo...
How to import a .cer certificate into a java keystore?
...ees that the attached properties are true.
.CER files are certificates and don't have the private key. The private key is provided with a .PFX keystore file normally.
If you really authenticate is because you already had imported the private key.
You normally can import .CER certificates without an...
Force overwrite of local file with what's in origin repo?
...ile that's in the repository, and overwrite what I have locally. How can I do this with the git client?
4 Answers
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pandas three-way joining multiple dataframes on columns
...N]
Assuming they have some common column, like name in your example, I'd do the following:
df_final = reduce(lambda left,right: pd.merge(left,right,on='name'), dfs)
That way, your code should work with whatever number of dataframes you want to merge.
Edit August 1, 2016: For those using Python...
What is the difference between application server and web server?
...ervers have Web Server as integral part of them, that means App Server can do whatever Web Server is capable of. Additionally App Server have components and features to support Application level services such as Connection Pooling, Object Pooling, Transaction Support, Messaging services etc.
As web ...
In Objective-C, what is the equivalent of Java's “instanceof” keyword?
...nd if the object is of a subclass of your class with:
if ([myObject isKindOfClass:[AnObject class]])
as suggested by Jon Skeet and zoul.
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Visual Studio replace tab with 4 spaces?
...ne of these answer were working for me on my macbook pro. So what i had to do was go to:
Preferences -> Source Code -> Code Formatting -> C# source code.
From here I could change my style and spacing tabs etc. This is the only project i have where the lead developer has different formatti...
MongoDB inserts float when trying to insert integer
How do I get Mongo to insert an integer?
4 Answers
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Generating an MD5 checksum of a file
...st, if you just need the packed bytes use return hash_md5.digest(), so you don't have to convert back.
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How can I download a specific Maven artifact in one command line?
I can install an artifact by install:install-file ,
but how can I download an artifact?
11 Answers
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