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Don't understand why UnboundLocalError occurs (closure) [duplicate]

... 169 Python doesn't have variable declarations, so it has to figure out the scope of variables itse...
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How can I open the interactive matplotlib window in IPython notebook?

... 143 According to the documentation, you should be able to switch back and forth like this: In [2]...
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The forked VM terminated without saying properly goodbye. VM crash or System.exit called

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How can I use Python to get the system hostname?

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creating a random number using MYSQL

...ld like to know is there a way to select randomly generated number between 100 and 500 along with a select query. 6 Answer...
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How to check if mysql database exists

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Show a number to two decimal places

... 1171 You can use number_format(): return number_format((float)$number, 2, '.', ''); Example: $...
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Is there a way to define a min and max value for EditText in Android?

...(R.id.myEditText); et.setFilters(new InputFilter[]{ new InputFilterMinMax("1", "12")}); This will allow user to enter values from 1 to 12 only. EDIT : Set your edittext with android:inputType="number". You can find more details at https://www.techcompose.com/how-to-set-minimum-and-maximum-value...
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How can I divide two integers to get a double?

... You want to cast the numbers: double num3 = (double)num1/(double)num2; Note: If any of the arguments in C# is a double, a double divide is used which results in a double. So, the following would work too: double num3 = (double)num1/num2; For more information see: Dot Net P...
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How to compare dates in datetime fields in Postgresql?

...ithout timezone'. Client can search over this field with only date (i.e: 2013-05-03) or date with time (i.e: 2013-05-03 12:20:00). This column has the value as timestamp for all rows currently and have the same date part(2013-05-03) but difference in time part. ...