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Installing specific package versions with pip
I'm trying to install version 1.2.2 of the MySQL_python adaptor, using a fresh virtualenv created with the --no-site-packages option. The current version shown in PyPi is 1.2.3 . Is there a way to install the older version? I found an article stating that this should do it:
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No Persistence provider for EntityManager named
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edited Jun 20 '16 at 3:14
Dave Jarvis
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How does a Java HashMap handle different objects with the same hash code?
...fier is the hash code of the key. For example: The hash code of the key is 235 -> the pair is stored in bucket number 235. (Note that one bucket can store more then one key-value pair).
When you lookup a value in the hashmap, by giving it a key, it will first look at the hash code of the key tha...
Python List vs. Array - when to use?
...ray.array is also a reasonable way to represent a mutable string in Python 2.x (array('B', bytes)). However, Python 2.6+ and 3.x offer a mutable byte string as bytearray.
However, if you want to do math on a homogeneous array of numeric data, then you're much better off using NumPy, which can automa...
How do I commit only some files?
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I suppose you want to commit the changes to one branch and then make those changes visible in ...
Difference of Maven JAXB plugins
I have determined that two JAXB plugins for Maven 2 exist, with some different configurations.
6 Answers
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When should I use double or single quotes in JavaScript?
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Java: Why is the Date constructor deprecated, and what do I use instead?
... edited Jul 9 '19 at 1:58
Sae1962
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answered Apr 15 '11 at 13:27
Ruben...
What does extern inline do?
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in K&R C or C89, inline was not part of the language. Many compilers implemented it as an e...