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How to check if a python module exists without importing it

...mport can find something in python2, using imp import imp try: imp.find_module('eggs') found = True except ImportError: found = False To find dotted imports, you need to do more: import imp try: spam_info = imp.find_module('spam') spam = imp.load_module('spam', *spam_info) i...
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What's the difference between dynamic (C# 4) and var?

... { [CompilerGenerated] private static class <Main>o__SiteContainer0 { public static CallSite<Action<CallSite, object>> <>p__Site1; } private static void Main(string[] args) { Junk a = new Junk(); /...
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Why would a JavaScript variable start with a dollar sign? [duplicate]

...; // refers to the jQuery object representation of the dom object var email_field = $("#email").get(0); // refers to the dom object itself I find this to be very helpful in writing jQuery code and makes it easy to see jQuery objects which have a different set of properties. ...
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Python: Using .format() on a Unicode-escaped string

... @Kit: If you want all literals to be Unicode (like in Python 3), put from __future__ import unicode_literals at the beginning of your source files. – Philipp Jul 13 '10 at 8:47 1 ...
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Javascript: Round up to the next multiple of 5

... const fn = _num =>{ return Math.round(_num)+ (5 -(Math.round(_num)%5)) } reason for using round is that expected input can be a random number. Thanks!!! ...
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What is the purpose of using -pedantic in GCC/G++ compiler?

...s OK when I re-enable it (the one program that didn't was explicitly using __int128 types, which are pedantically incorrect). I think there was an intervening stage when GCC was too noisy (for my liking) with -pedantic. I just tested about 300 source files — some library code, some commands, som...
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How to convert SQL Query result to PANDAS Data Structure?

...r. 2015 As noted below, pandas now uses SQLAlchemy to both read from (read_sql) and insert into (to_sql) a database. The following should work import pandas as pd df = pd.read_sql(sql, cnxn) Previous answer: Via mikebmassey from a similar question import pyodbc import pandas.io.sql as psql cn...
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Get element inside element by class and ID - JavaScript

... @Ӫ_._Ӫ ... lol...your correct but you just prove my answer even more. You cannot rely on getElementsByClassName if your page needs to function across multiple browsers. jQuery would definately be an option but so whould the ...
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How to change the background color of the options menu?

..."> ... <item name="android:itemBackground">@color/overflow_background</item> ... </style> Tested from API 4.2 to 5.0. share | improve this answer | ...
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Should Gemfile.lock be included in .gitignore?

... Thx for helpful article. – ashisrai_ Mar 21 '11 at 4:49 1 you should put what c...