name '__file__' is not defined

I compile the following python source file to pye file
```py
print(__file__)
```
but the pye file can not run
error message:
```
Traceback (most recent call last):
  File "enc/test1.py", line 1, in <module>
NameError: name '__file__' is not defined. Did you mean: '__name__'?
```