On 18/11/2016 00:47, Steve D'Aprano wrote:
On Fri, 18 Nov 2016 12:19 am, BartC wrote:
On 17/11/2016 12:20, Steve D'Aprano wrote:
In the most recent versions of Python, dis.dis() will also accept a
string:
py> dis.dis('y = x + 1')
1 0 LOAD_NAME 0 (x)
3 LOAD_CONST 0 (1)
6 BINARY_ADD
7 STORE_NAME 1 (y)
10 LOAD_CONST 1 (None)
13 RETURN_VALUE
Py2 gave me (for "y=x+1"):
0 SETUP_EXCEPT 30781 (to 30784)
3 STORE_SLICE+3
4 <49>
Py3.4 works as you say but after that result I was disinclined to take
it further!
You may have missed the bit where I said "In the most recent versions".
Python 2.7 will be interpreting the string "y=x+1" as compiled byte-code,
and disassembling it into junk.
I did my tests ('dis.dis("x=10")') before your post and before my
original post. Py2 generated nonsense so I tried something else.
That Py2's dis.dis() accepts a string argument but treats it as compiled
byte-code sounds like a bug. Unless it's a feature.
--
Bartc
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