# Pylyzer-specific errors
## E0001: Reassignment of a function referenced by other functions
```python
def g(): return f()
def f(): return 1
def f(): return "a" # E0001: Reassignment of a function referenced by other functions
print(g())
```
## E0002: `__init__` doesn't have a first parameter named `self`
```python
class C:
def __init__(a): pass # E0002
```
## E0003: `__init__` as a member variable
```python
class C:
__init__ = 1 # E0003
```