# tcopy
_Do not use this._
A direct tail call optimizing decorator for Python.
## Examples:
```python
from tcopy import tco
@tco
def fib(n, x=0, y=1):
if n == 0:
return x
return fib(n - 1, y, x + y)
```
The `tco` decorator will rewrite `fib` into the following at
definition time:
```python
def fib(n, x=0, y=1):
while 1:
if n == 0:
return x
n, x, y = n - 1, y, x + y
```
## Quirks
`tco` uses `inspect.getsource` to grab a function's source code from
disk. Because of this, the decorator does not work in the Python REPL.
_Do not use this._
A direct tail call optimizing decorator for Python.
## Examples:
```python
from tcopy import tco
@tco
def fib(n, x=0, y=1):
if n == 0:
return x
return fib(n - 1, y, x + y)
```
The `tco` decorator will rewrite `fib` into the following at
definition time:
```python
def fib(n, x=0, y=1):
while 1:
if n == 0:
return x
n, x, y = n - 1, y, x + y
```
## Quirks
`tco` uses `inspect.getsource` to grab a function's source code from
disk. Because of this, the decorator does not work in the Python REPL.
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