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Convert generator object to list for debugging [duplicate]
...
Simply call list on the generator.
lst = list(gen)
lst
Be aware that this affects the generator which will not return any further items.
You also cannot directly call list in IPython, as it conflicts with a command for listing li...
How do I change my Ruby version using RVM?
...ed to me too. I had:
export PATH=~/.rvm/bin:$PATH
Added in my .bashrc.
All I had to do was add another
[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"
to the same file and it worked!
Of course, you have to restart your terminal after that.
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Transform DateTime into simple Date in Ruby on Rails
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DateTime#to_date does exist with ActiveSupport:
$ irb
>> DateTime.new.to_date
NoMethodError: undefined method 'to_date' for #<DateTime: -1/2,0,2299161>
from (irb):1
>> require 'active_support/core_ext'
=> true
>> D...
Reading a plain text file in Java
...
I'd also recommend you download and read this wonderful (yet free) book called Thinking In Java
In Java 7:
new String(Files.readAllBytes(...))
(docs)
or
Files.readAllLines(...)
(docs)
In Java 8:
Files.lines(..).forEach(...)
(docs)
...
How do I get the currently displayed fragment?
...t the currently displayed Fragment instance, not iteratively check through all fragments and then decide which fragment is now displayed on the screen. I think your answer needs my code to iteratively check each of my fragments, and find out the visible one ...
– Leem.fin
...
How to convert comma-delimited string to list in Python?
...ful though, splitting an empty string does not return what one might have expected: "".split(",") returns [""] (a list with one element, which is empty string).
– johndodo
Jan 5 '18 at 11:36
...
How does Apple find dates, times and addresses in emails?
...ay be wrong). On the other hand I'd except the naiive approach of encoding all common formats to perform way better (possibly 0.99+ given that the most frequent formats will never be missed) and to be faster to implement + at runtime.
– b.buchhold
Feb 25 '12 at...
Filter dataframe rows if value in column is in a set list of values [duplicate]
... regular expressions.
For example, if we want to return a DataFrame where all of the stock IDs which begin with '600' and then are followed by any three digits:
>>> rpt[rpt['STK_ID'].str.contains(r'^600[0-9]{3}$')] # ^ means start of string
... STK_ID ... ...
android asynctask sending callbacks to ui [duplicate]
...tivity I'm initializing the asynctask, and I want the asynctask to report callbacks back to my activity.
Is it possible? Or does the asynctask must be in the same class file as the activity?
...
Why is inserting in the middle of a linked list O(1)?
...Operations on Linked Lists are often done in such a way that they aren't really treated as a generic "list", but as a collection of nodes--think of the node itself as the iterator for your main loop. So as you're poking through the list you notice as part of your business logic that a new node need...