Is there a way of assigning lambda to a function?

Question

I need to assign the lambda function to a variable, and use it later in the script for small protection. Is that possible?

For example, I´ll assign the lambda function to a variable named foo:

foo = lambda

then, when I need it, I would use it this way or another:

foo2 = foo x: x*x

is this possible?

What did you try? Please show your code. – MattDMo Jan 01 '23 at 15:00 — MattDMo, Jan 01 '23 at 15:00
`lambda` itself is not a function object, it is a keyword. – Mechanic Pig Jan 01 '23 at 15:07 — Mechanic Pig, Jan 01 '23 at 15:07

Akshay Sehgal · Accepted Answer · 2023-01-01T15:23:46.523

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lambda is a keyword and not an object. you have to define the function and save that as a variable.

The usage of lambda is quite straightforward though, as you have already done it with the print. Try this -

foo = lambda x: x.upper()

foo('hello world')

'HELLO WORLD'

EDIT: (Based on OPs comments) Here is a great SO answer that talks about why you can't change the keyword lambda with a variable name, being a reserved python keyword.

The OP mentioned these reserved keywords in the answer -

False      await      else       import     pass
None       break      except     in         raise
True       class      finally    is         return
and        continue   for        *lambda*     try
as         def        from       nonlocal   while
assert     del        global     not        with
async      elif       if         or         yield

edited Jan 01 '23 at 15:23

answered Jan 01 '23 at 15:02

Akshay Sehgal

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i mean using it like "foo = lambda" and then doing stuff like "foo2 = foo x: x+1" – River Jan 01 '23 at 15:03
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lambda is a `keyword` and not an object. you have to define the function and save that as a variable. – Akshay Sehgal Jan 01 '23 at 15:04
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@AkshaySehgal - Precise answer! I suggest you copy your important comment into your answer as well. – Arvind Kumar Avinash Jan 01 '23 at 15:07
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Thanks, edited my answer accordingly with mroe details – Akshay Sehgal Jan 01 '23 at 15:10
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Now I wonder why `finally` and `from` are colored differently ... – Kelly Bundy Jan 01 '23 at 15:17
interesting, i changed the code markdown to `python` specifically, and its the same, but this is only on SO. my IDE's dont have this behaviour – Akshay Sehgal Jan 01 '23 at 15:24
Yeah I had also tried that. And it [doesn't happen in context](https://i.stack.imgur.com/2p7Dk.png). – Kelly Bundy Jan 01 '23 at 15:29
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Oh, it's because they're after `class` and `def`. – Kelly Bundy Jan 01 '23 at 15:31

Is there a way of assigning lambda to a function?

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