<p>I understand what are lambda functions in Python, but I can't find what is the meaning of "lambda binding" by searching the Python docs.
A link to read about it would be great.
A trivial explained example would be even better.
Thank you.</p>

Where have you seen the phrase used?
"Binding" in Python generally refers to the process by which a variable name ends up pointing to a specific object, whether by assignment or parameter passing or some other means, e.g.:
```
```
a = dict(foo="bar", zip="zap", zig="zag") # binds a to a newly-created dict object
b = a # binds b to that same dictionary

def crunch(param):
  print param

crunch(a) # binds the parameter "param" in the function crunch to that same dict again
```
```
So I would guess that "lambda binding" refers to the process of binding a lambda function to a variable name, or maybe binding its named parameters to specific objects?  There's a pretty good explanation of binding in the Language Reference, at
http://docs.python.org/ref/naming.html