When I run a script with PDB, I find that I have to put for loops into one line to run correctly. When I try to nest for loops as shown below, I get a SyntaxError. How can I run nested for loops??
(pdb) for input in range(20): print input*2 0 2 4 ... 36 38 (pdb) for input in range(20): for output in range(10): print input*2 *** SyntaxError: invalid syntax(<stdin>, line 1) This does not have to do with pdb, but is just python (this fails in the normal python repl).
The grammar for a for statement is defined as:
for_stmt ::= "for" target_list "in" expression_list ":" suite ["else" ":" suite] where suite is either a list of simple statements or a newline and a list of statements. the for statment is a compound statement so it cannot be inlined like that.
help commands in pdb, this is most likely the command you are looking for.