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Failed to install Python Cryptography package with PIP and setup.py
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This solved the problem for me (Ubuntu 16.04):
sudo apt-get install build-essential libssl-dev libffi-dev python-dev python3-dev
and then it was working like this:
pip install cryptography
pip install pyopenssl ndg-httpsclient pyasn1
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What is the facade design pattern?
...ls of the subsystems, making it easier to modify the system later.
http://www.dofactory.com/Patterns/PatternFacade.aspx
http://www.blackwasp.co.uk/Facade.aspx
Also, what is important while learning design patterns is to be able to recognize which pattern fits your given problem and then using it ...
Why is debugging better in an IDE? [closed]
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– dmckee --- ex-moderator kitten
Jan 9 '09 at 2:04
1
Yes, but the OP asked "What makes IDE debugging tools so...
UnicodeEncodeError: 'latin-1' codec can't encode character
...b", use_unicode=True, charset="utf8") – KyungHoon Kim Mar
13 '14 at 17:04
detail see :
class Connection(_mysql.connection):
"""MySQL Database Connection Object"""
default_cursor = cursors.Cursor
def __init__(self, *args, **kwargs):
"""
Create a connection to t...
Conveniently map between enum and int / String
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http://www.javaspecialists.co.za/archive/Issue113.html
The solution starts out similar to yours with an int value as part of the enum definition. He then goes on to create a generics-based lookup utility:
public class ReverseEnum...
CSS two divs next to each other
...it.
– Martin Carney
Dec 6 '11 at 22:04
5
This does not work when the content is large in Content1...
What is meant by the term “hook” in programming?
... geowa4geowa4
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Java synchronized method lock on object, or method?
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edited Jul 8 '19 at 11:04
informatik01
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quick random row selection in Postgres
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Check this link out for some different options.
http://www.depesz.com/index.php/2007/09/16/my-thoughts-on-getting-random-row/
Update: (A.Hatchkins)
The summary of the (very) long article is as follows.
The author lists four approaches:
1) ORDER BY random() LIMIT 1; -- slow
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Difference between map and collect in Ruby?
...Actually they are documented in the same place under ruby-doc.org:
http://www.ruby-doc.org/core/classes/Array.html#M000249
ary.collect {|item| block } → new_ary
ary.map {|item| block } → new_ary
ary.collect → an_enumerator
ary.map → an_enumerator
Invokes block once for ...