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append multiple values for one key in a dictionary [duplicate]
I am new to python and I have a list of years and values for each year. What I want to do is check if the year already exists in a dictionary and if it does, append the value to that list of values for the specific key.
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How do I check the operating system in Python?
...or the valid values, consult the documentation.
See also the answer to “What OS am I running on?”
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What permission do I need to access Internet from an Android application?
I get the following Exception running my app:
13 Answers
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XML serialization in Java? [closed]
What is the Java analogue of .NET's XML serialization?
11 Answers
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ThreadStart with parameters
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What is myParamObject and myUrl?
– dialex
Mar 14 '12 at 17:26
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Benefits of using the conditional ?: (ternary) operator
What are the benefits and drawbacks of the ?: operator as opposed to the standard if-else statement. The obvious ones being:
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How to list all methods for an object in Ruby?
...e method is not present...I suggest you file a new question where you show what your AR Class definitions are and then ask about the specific methods that you think :has_many should provide. Also do you have the matching :belongs_to? Rails's capitalization and pluralization rules for AR have led man...
Multiple cases in switch statement
...the question. The OP said, am I missing something... Carlos answered with what he was missing. Seems pretty cut and dried to me. Don't hate that he's got 422 upvotes.
– Mike Devenney
Mar 30 '16 at 19:42
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'innerText' works in IE, but not in Firefox
...s already in the current beta release, and has been in aurora for a while. What this practically means is you can start developing sites using innerText only and expect it to work (with possible quirks) on all current browsers in the near future, and old-IE too.
– Bob
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Should the folders in a solution match the namespace?
...sses go into that namespace. You are then free to put the class files into whatever project folders you want. There is no messing about adding using statements at the top of files all the time as there is just a single namespace.
It is important to organize source files into folders and in my opini...