sage.misc.prandom misses several functions added in Python 3

[mkoeppe]

According to https://docs.python.org/3/library/random.html, we are missing the following random generators

• choices (added in Python 3.6)
• randbytes (added in Python 3.9)
• triangular

As well as the classes to get generators without shared states

• Random class
• SystemRandom class

And the getter/setter

• seed
• getstate
• setstate

CC: @videlec

Component: misc

Issue created by migration from https://trac.sagemath.org/ticket/32439

[videlec]

comment:3

sage: import random
sage: import sage.misc.prandom
sage: sorted(name for name in set(dir(random)).difference(dir(sage.misc.prandom)) if not name.startswith('_') and callable(getattr(random, name)))
['Random',
 'SystemRandom',
 'choices',
 'getstate',
 'randbytes',
 'seed',
 'setstate',
 'triangular']

[videlec]

Description changed:

--- 
+++ 
@@ -1,3 +1,17 @@
-https://docs.python.org/3/library/random.html
+According to https://docs.python.org/3/library/random.html, we are missing the following random generators

-For example, there is `random.triangular` but no `sage.misc.prandom.triangular`.
+- [choices](https://docs.python.org/3/library/random.html#random.choices) (added in Python 3.6)
+- [randbytes](https://docs.python.org/3/library/random.html#random.randbytes) (added in Python 3.9)
+- [triangular](https://docs.python.org/3/library/random.html#random.triangular)
+
+As well as the classes to get generators without shared states
+
+- [Random class](https://docs.python.org/3/library/random.html#random.Random)
+- [SystemRandom class](https://docs.python.org/3/library/random.html#random.Random)
+
+And the getter/stter
+
+- [seed](https://docs.python.org/3/library/random.html#random.seed)
+- [getstate](https://docs.python.org/3/library/random.html#random.getstate)
+- [setstate](https://docs.python.org/3/library/random.html#random.setstate)
+

[Sandstorm831]

Commit: 1a42056

[Sandstorm831]

Branch: u/gh-Sandstorm831/32439

[Sandstorm831]

New commits:

f0f4fc6	minor documentation addition
7175d2f	Revert "minor documentation addition"
81c4314	implemented choices, randbytes and triangular functions
1a42056	adding examples

I have added the functions along the examples, I wanted to know that do we have to write the complete Random class and SystemRandom class? Also getter, setter and seed have to be added in the both classes or seperately ?

[mkoeppe]

Removed branch from the issue description because it has been replaced by PR #34973