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How to get the last day of the month?

Is there a way using Python's standard library to easily determine (i.e. one function call) the last day of a given month? ...
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How do I check if file exists in jQuery or pure JavaScript?

...l, false); http.send(); return http.status!=404; } Small changes and it could check for status HTTP status code 200 (success), instead. EDIT 2: Since sync XMLHttpRequest is deprecated, you can add a utility method like this to do it async: function executeIfFileExist(src, callback) { ...
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Moving decimal places over in a double

...Decimal. The problem you have is that 0.1 is not an exact representation, and by performing the calculation twice, you are compounding that error. However, 100 can be represented accurately, so try: double x = 1234; x /= 100; System.out.println(x); which prints: 12.34 This works because Doub...
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Read Excel File in Python

... A somewhat late answer, but with pandas it is possible to get directly a column of an excel file: import pandas import xlrd df = pandas.read_excel('sample.xls') #print the column names print df.columns #get the values for a given column values = df['Arm_id']...
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Send string to stdin

... This is coming from the stdin EOF or you can redirect output from a command, like diff <(ls /bin) <(ls /usr/bin) or you can read as while read line do echo =$line= done < some_file or simply echo something | read param ...
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Running bash script from within python

... Making sleep.sh executable and adding shell=True to the parameter list (as suggested in previous answers) works ok. Depending on the search path, you may also need to add ./ or some other appropriate path. (Ie, change "sleep.sh" to "./sleep.sh".) The...
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Using numpy to build an array of all combinations of two arrays

... noted that meshgrid only works for smaller range sets, I have a large one and I get error: ValueError: maximum supported dimension for an ndarray is 32, found 69 – mikkom Oct 20 '19 at 6:54 ...
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How do I get the dialer to open with phone number displayed?

...t.ACTION_CALL. In this case, you must add the following permission in your AndroidManifest.xml: <uses-permission android:name="android.permission.CALL_PHONE" /> 2) Need user to click on Phone_Number string and start the call. android:autoLink="phone" You need to use TextView with below prop...
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resize ipython notebook output window

...e in your ipython profile. (cf readme) copy custom.example.js to custom.js and uncomment require('custom/autoscroll.js') in it. Restart IPython. – Matt Sep 14 '13 at 9:24 add ...
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How do I use the new computeIfAbsent function?

...t without a helper method (but you won’t see the debugging output then). And even simpler, as it is a simple delegation to an existing method you could write: whoLetDogsOut.computeIfAbsent("snoop", String::isEmpty); This delegation does not need any parameters to be written. To be closer to the e...