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Python integer incrementing with ++ [duplicate]
...ot seem to completely replace C++'s ++ operator.
– Dr_Zaszuś
Oct 12 '18 at 18:07
add a comme...
Read only the first line of a file?
...od (Python 2 docs, Python 3 docs):
with open('myfile.txt') as f:
first_line = f.readline()
Some notes:
As noted in the docs, unless it is the only line in the file, the string returned from f.readline() will contain a trailing newline. You may wish to use f.readline().strip() instead to rem...
Multiple DB Contexts in the Same DB and Application in EF 6 and Code First Migrations
...lied to the target database.
Applying explicit migrations: [201402032113124_InitialDatabaseCreation].
Applying explicit migration: 201402032113124_InitialDatabaseCreation.
Running Seed method.
PM> Update-Database -ConfigurationTypeName WebApplication3.Migrations.AnotherDbContext.Configuration
Sp...
Cookies on localhost with explicit domain
...ill consider them invalid. (See reference on http://curl.haxx.se/rfc/cookie_spec.html)
When working on localhost, the cookie domain must be omitted entirely. Just setting it to "" or NULL or FALSE instead of "localhost" is not enough.
For PHP, see comments on http://php.net/manual/en/function.set...
How do I activate a virtualenv inside PyCharm's terminal?
... to get the full path to the current directory?
– bad_coder
Jun 22 at 2:38
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Is null reference possible?
...act of dereferencing, here's the link: open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1102
– Johannes Schaub - litb
Dec 6 '10 at 9:03
...
Why does pylint object to single character variable names?
...riptive and not too short.
You can use this to avoid such short names:
my_list.extend(x_values)
Or tweak PyLint's configuration to tell PyLint what variable name are good.
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Is there a way to stop Google Analytics counting development work as hits?
... if (document.location.hostname == "example.com") { /* ga code */ } else { _gaq = {push: function(arg) {console.log("ga:", arg)}}} - this allows me to safely use some event trackers and custom _gaq calls anywhere in my code and in the same time allow me to debug GA calls on dev environment.
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What can you do in MSIL that you cannot do in C# or VB.NET? [closed]
...etty much all over the place. Examine the IL for this: "let print x = print_any x".
– MichaelGG
Feb 24 '09 at 23:22
1
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pandas three-way joining multiple dataframes on columns
...ve 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 3: reduce has been m...