### Count Available Strategies

Source: http://axelrod.readthedocs.org

Import the library and count the total number of available strategies.

```python
>>> import axelrod as axl
>>> len(axl.strategies)
243
```

--------------------------------

### Build and Play a Tournament

Source: http://axelrod.readthedocs.org

Create a tournament with a given set of players and play the tournament. Results are ranked by name.

```python
>>> import axelrod as axl
>>> players = (axl.Cooperator(), axl.Alternator(), axl.TitForTat())
>>> tournament = axl.Tournament(players)
>>> results = tournament.play()
>>> results.ranked_names
['Alternator', 'Tit For Tat', 'Cooperator']
```

--------------------------------

### Study Evolutionary Process with Moran Process

Source: http://axelrod.readthedocs.org

Set up a Moran process with a given set of players and simulate its evolution. Displays population counts over time.

```python
>>> import axelrod as axl
>>> players = (axl.Cooperator(), axl.Alternator(), axl.TitForTat())
>>> mp = axl.MoranProcess(players)
>>> populations = mp.play()
>>> populations
[Counter({'Alternator': 1, 'Cooperator': 1, 'Tit For Tat': 1}),
 Counter({'Alternator': 1, 'Cooperator': 1, 'Tit For Tat': 1}),
 Counter({'Cooperator': 1, 'Tit For Tat': 2}),
 Counter({'Cooperator': 1, 'Tit For Tat': 2}),
 Counter({'Tit For Tat': 3})]
```

--------------------------------

### Create a Match Between Two Players

Source: http://axelrod.readthedocs.org

Instantiate two players, create a match between them, and play a specified number of rounds. Displays the interactions.

```python
>>> import axelrod as axl
>>> players = (axl.Alternator(), axl.TitForTat())
>>> match = axl.Match(players, 5)
>>> interactions = match.play()
>>> interactions
[(C, C), (D, C), (C, D), (D, C), (C, D)]
```

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