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Is there a Unix utility to prepend timestamps to stdin?
I ended up writing a quick little script for this in Python, but I was wondering if there was a utility you could feed text into which would prepend each line with some text -- in my specific case, a timestamp. Ideally, the use would be something like:
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Get the new record primary key ID from MySQL insert query?
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If in python using pymysql, from the cursor you can use cursor.lastrowid
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Can I get “&&” or “-and” to work in PowerShell?
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If your command is available in cmd.exe (something like python ./script.py, but not PowerShell command like ii . (this means to open the current directory by Windows Explorer)), you can run cmd.exe within PowerShell. The syntax is like this:
cmd /c "command1 && command2"
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How do I search for an object by its ObjectId in the mongo console?
...ii - this example is for the MongoShell. It looks like you're running from Python, in which case you would want to do something like: db.test.find({'_id': ObjectId('4ecc05e55dd98a436ddcc47c')})
– MPlanchard
Mar 22 '17 at 0:58
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Recommended Vim plugins for JavaScript coding? [closed]
...avs = {
\ '*' : [],
\ 'ruby' : [],
\ 'python' : [],
\ 'perl' : [],
\ 'xml' : [],
\ 'html' : [],
\ 'xhtml' : [],
\ 'css' : [],
\ 'javascript' : [],
\ 'actionscript' : [],
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Import CSV to mysql table
...irst row of data be used as the column names". (I would prefer a script in Python, so I don't have to install PHP, but it shouldn't be hard to port it.)
– LarsH
Mar 19 '15 at 21:46
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JavaScript pattern for multiple constructors
...ram, argmap.optionalparam);
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}
bar({param: 1, optionalparam: 2})
Python demonstrates how default and named arguments can be used to cover the most use cases in a more practical and graceful way than function overloading. JavaScript, not so much.
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How do you determine which backend is being used by matplotlib?
Either interactively, such as from within an Ipython session, or from within a script, how can you determine which backend is being used by matplotlib?
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NumPy or Pandas: Keeping array type as integer while having a NaN value
...values. This enables vectorised NumPy-based calculations where, otherwise, Python-level loops would be processed.
The docs do suggest : "One possibility is to use dtype=object arrays instead." For example:
s = pd.Series([1, 2, 3, np.nan])
print(s.astype(object))
0 1
1 2
2 3
3 N...
How do I check in SQLite whether a table exists?
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This is a great way to determine if a table exists in Python.
– Michael Murphy
Dec 9 '14 at 7:01
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