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Why does SSL handshake give 'Could not generate DH keypair' exception?

... This works for me too, but I have added a provider dynamically. Reffer my answer here for details. – v.ladynev Nov 22 '15 at 9:19 ...
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Flask-SQLalchemy update a row's information

...e many objects to be updated. If you want to give add_user permission to all the admins, rows_changed = User.query.filter_by(role='admin').update(dict(permission='add_user')) db.session.commit() Notice that filter_by takes keyword arguments (use only one =) as opposed to filter which takes an e...
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What are “first class” objects?

...as any other object. A first class object is an entity that can be dynamically created, destroyed, passed to a function, returned as a value, and have all the rights as other variables in the programming language have. Depending on the language, this can imply: being expressible as ...
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Is there any Rails function to check if a partial exists?

..., I'm using the following in my Rails 3/3.1 projects: lookup_context.find_all('posts/_form').any? The advantage over other solutions I've seen is that this will look in all view paths instead of just your rails root. This is important to me as I have a lot of rails engines. This also works in R...
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putting current class as return type annotation [duplicate]

...e. Instead, they are preserved in __annotations__ in string form. This is called Postponed Evaluation of Annotations, introduced in PEP 563. Also note: Deprecation policy Starting with Python 3.7, a __future__ import is required to use the described functionality. No warnings are raised...
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Python extending with - using super() Python 3 vs Python 2

Originally I wanted to ask this question , but then I found it was already thought of before... 5 Answers ...
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“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?

...ter you can change the column encoding from utf8 to utf8mb4. This encoding allows storage of characters that occupy 4 bytes in UTF-8. You may also have to set the server property character_set_server to utf8mb4 in the MySQL configuration file. It seems that Connector/J defaults to 3-byte Unicode ot...
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How to include external Python code to use in other files?

...ods in a file, is there a way to include those files in another file, but call them without any prefix (i.e. file prefix)? ...
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How to flush output of print function?

...e) On Python 2 you'll have to do import sys sys.stdout.flush() after calling print. By default, print prints to sys.stdout (see the documentation for more about file objects). share | improve t...
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Convert nested Python dict to object?

...; s.a 1 >>> s.b {'c': 2} >>> s.c Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'MyStruct' object has no attribute 'c' >>> s.d ['hi'] The alternative (original answer contents) is: class Struct: def __init__(self...