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Escaped interpolation symbols in "..." generate incorrect python code

1

Escaped interpolation symbols in "..." generate incorrect python code. Also, symbols `{` and `}` need to be escaped (by doubling them) in python `f"..."` strings. For example: print "three=i\@{3}\$\n"; print...

snoopyjc

Perl ? : operator generates bad code

1

Perl `? :` operator generates bad code if the first part is not parenthesized, or if it's not directly used in an assignment statement. For example: $redirect = $options{debug} ?...

snoopyjc

Hash references should generate a get operation to mimic perl

1

Hash references should generate a `get()` operation to mimic perl. Currently they give a 'key error' if they key isn't found. Perl returns undef.

snoopyjc

Incorrect translation of perl chdir, chmod

1

Incorrect translation of perl chdir, chmod. For example: chdir $rundir; produces: rundir.os.chdir instead of: os.chdir(rundir)

snoopyjc

The -r flag should look for pre_pythonizer in the same dir as pythonizer, not the current dir

1

The -r flag should look for pre_pythonizer in the same dir as pythonizer, not the current dir

snoopyjc

Array assignments to a list of scalars raise exceptions on mismatches

1

Array assignments to a list of scalars raise exceptions on mismatches. In perl they silently copy over as many elements as they can and fill in the rest with `undef`...

snoopyjc

Regex's in a list context with groups produces incorrect code

1

Regex's in a list context with groups produces incorrect code. For example: @ymd = $file =~ /^(\d{4})(\d{2})(\d{2})$/; Generates: ymd=(default_match:=re.match('^(\d{4})(\d{2})(\d{2})$',file)) And it should generate: ymd=(default_match:=re.match('^(\d{4})(\d{2})(\d{2})$',file),default_match.groups() if default_match else [])[1]

snoopyjc

Assignments in expressions with complicated LHS produces incorrect code

2

Perl assignments in expressions allows arbitrary LHS, while python only allows a single variable, so things like: if(($year, $month, $day) = @ymd) { ... } or if($arr[0] = $i) {...

snoopyjc

The functions ord, chr, print, and say should default to $_ if no arg is given

1

The functions ord, chr, print, and say should default to `$_` if no arg is given. For print and say, giving one arg `FH` should also print `$_` when `FH`...

snoopyjc

The functions grep and map generate bad code

1

The functions grep and map generate bad code. A lambda function needs to be used, and the BLOCK format puts the array after the right paren.

snoopyjc