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How Big can a Python List Get?
...ZE_T_MAX is defined in pyport.h to be ((size_t) -1)>>1
On a regular 32bit system, this is (4294967295 / 2) / 4 or 536870912.
Therefore the maximum size of a python list on a 32 bit system is 536,870,912 elements.
As long as the number of elements you have is equal or below this, all list ...
How do I see what character set a MySQL database / table / column is?
... @TobyJ, I don't see you complaining at stackoverflow.com/a/4805510/632951
– Pacerier
Aug 20 '15 at 4:14
what do...
Code coverage with Mocha
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answered Apr 1 '14 at 12:32
jsanjsan
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How to replace a hash key with another key
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hash[:new_key] = hash.delete :old_key
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Scala how can I count the number of occurrences in a list
...", "banana", "apple", "oranges", "oranges")
s.groupBy(identity).mapValues(_.size)
giving a Map with a count for each item in the original sequence:
Map(banana -> 1, oranges -> 3, apple -> 3)
The question asks how to find the count of a specific item. With this approach, the solution w...
Inline labels in Matplotlib
...t a lot because it's still not bulletproof. I divided the plot area into a 32x32 grid and calculated a 'potential field' for the best position of a label for each line according the following rules:
white space is a good place for a label
Label should be near corresponding line
Label should be awa...
Python: changing value in a tuple
...nvert back, or construct a new tuple by concatenation.
In [1]: def replace_at_index1(tup, ix, val):
...: lst = list(tup)
...: lst[ix] = val
...: return tuple(lst)
...:
In [2]: def replace_at_index2(tup, ix, val):
...: return tup[:ix] + (val,) + tup[ix+1:]
...:
S...
常用Sql - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...,0) NOT NULL COMMENT '递增ID',
`FIELD_1` varchar(32) NOT NULL COMMENT '字段1',
`FIELD_2` varchar(32) NOT NULL COMMENT '字段2',
PRIMARY KEY (`ID`),
KEY `FIELD_1` (`FIELD_1`), #单索引
KEY `FIELD_1_2` (`FIELD_1`, `F...
How to implement a ConfigurationSection with a ConfigurationElementCollection
...ypeof(CustomApplicationConfigSection));
public const string SECTION_NAME = "CustomApplicationConfig";
[ConfigurationProperty("Credentials")]
public CredentialsConfigElement Credentials
{
get
{
return base["Credentials"] as Cred...
JavaScript is in array
...if the result > -1 and false if result === -1
– bm_i
Nov 5 '12 at 19:01
11
@bm_i Which faster?...