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“Server” vs “Data Source” in connection string
...created equivalents...? (except to confuse us :-))
– bytedev
Oct 19 '18 at 11:23
1
@bytedev - his...
Bash Script : what does #!/bin/bash mean? [duplicate]
..., when executed.
In your example, the script is to be interpreted and run by the bash shell.
Some other example shebangs are:
(From Wikipedia)
#!/bin/sh — Execute the file using sh, the Bourne shell, or a compatible shell
#!/bin/csh — Execute the file using csh, the C shell, or a compatible ...
awk without printing newline
I want the variable sum/NR to be printed side-by-side in each iteration. How do we avoid awk from printing newline in each iteration ? In my code a newline is printed by default in each iteration
...
Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
...prefer try/except over if/else if that results in
speed-ups (for example by preventing extra lookups)
cleaner code (fewer lines/easier to read)
Often, these go hand-in-hand.
speed-ups
In the case of trying to find an element in a long list by:
try:
x = my_list[index]
except IndexError:
...
Understanding the difference between __getattr__ and __getattribute__
...ttr(instance, attribute_name). Using this model, we can get the attribute by supplying the attribute_name as a string.
Use of __getattr__
You can also tell a class how to deal with attributes which it doesn't explicitly manage and do that via __getattr__ method.
Python will call this method when...
What's Alternative to Singleton
...a reference to a single instance (which you store in the factory class) or by copying the relevant data into the new object.
All your objects will then contain the data that used to live in the singleton. I don't think there's much of a difference overall, but it can make your code easier to read.
...
Regex (grep) for multi-line search needed [duplicate]
...unning a grep to find any *.sql file that has the word select followed by the word customerName followed by the word from . This select statement can span many lines and can contain tabs and newlines.
...
Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'
...
Thanks Ignacio. I already tried this solution by myself (to eliminate -mno-cygwin from cygwinccompyler). The error disappeared but then I got a different error with ld. But this is a different question. I will post it tomorrow. Now need some rest... why is so difficult t...
Exiting from python Command Line
...ion -- 'Use Ctrl-D (i.e. EOF) to exit.'. You can check on your interpreter by entering type(exit)
In active python what is happening is that exit is a function. If you do not call the function it will print out the string representation of the object. This is the default behaviour for any object re...
What's wrong with Groovy multi-line String?
...ill create a String with test on three lines
Also, you can make it neater by:
def a = """test
|test
|test""".stripMargin()
the stripMargin method will trim the left (up to and including the | char) from each line
...