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Jeff Epler 0318eb359f makeqstrdata: Work around python3.6 compatibility problem 
Discord user Folknology encountered a problem building with Python 3.6.9,
`TypeError: ord() expected a character, but string of length 0 found`.

I was able to reproduce the problem using Python3.5*, and discovered that
the meaning of the regular expression `"|."` had changed in 3.7.  Before,
```
>>> [m.group(0) for m in re.finditer("|.", "hello")]
['', '', '', '', '', '']
```
After:
```
>>> [m.group(0) for m in re.finditer("|.", "hello")]
['', 'h', '', 'e', '', 'l', '', 'l', '', 'o', '']
```
Check if `words` is empty and if so use `"."` as the regular expression
instead.  This gives the same result on both versions:
```
['h', 'e', 'l', 'l', 'o']
```
and fixes the generation of the huffman dictionary.

Folknology verified that this fix worked for them.

 * I could easily install 3.5 but not 3.6.  3.5 reproduced the same problem
2020-09-21 10:03:07 -05:00
..
argcheck.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmarm.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmarm.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmbase.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmbase.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmthumb.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmthumb.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmx64.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmx64.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmx86.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmx86.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmxtensa.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
asmxtensa.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
bc0.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
bc.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
bc.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
binary.c modstruct: Improve compliance with python3 2020-09-12 14:07:23 -05:00
binary.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
builtin.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
builtinevex.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
builtinhelp.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
builtinimport.c builtinimport: Fix a crash with 'import ulab.linalg' on unix port only 2020-08-30 11:09:49 -05:00
circuitpy_defns.mk camera: Change API 2020-09-14 13:11:15 +02:00
circuitpy_mpconfig.h camera: Implement new library for camera 2020-09-14 13:11:15 +02:00
circuitpy_mpconfig.mk camera: Implement new library for camera 2020-09-14 13:11:15 +02:00
compile.c Merge pull request #3222 from WarriorOfWire/pick_micropython 2020-07-29 10:54:37 -07:00
compile.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
emit.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
emitbc.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
emitcommon.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
emitglue.c add coroutine behavior for generators 2020-07-23 20:40:16 -07:00
emitglue.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
emitinlinethumb.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
emitinlinextensa.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
emitnarm.c py: Refactor how native emitter code is compiled with a file per arch. 2018-04-10 15:06:47 +10:00
emitnative.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
emitnthumb.c py: Refactor how native emitter code is compiled with a file per arch. 2018-04-10 15:06:47 +10:00
emitnx64.c py: Refactor how native emitter code is compiled with a file per arch. 2018-04-10 15:06:47 +10:00
emitnx86.c py/emitnx86: Fix 32-bit x86 native emitter build by including header. 2018-05-04 20:39:16 +10:00
emitnxtensa.c py: Refactor how native emitter code is compiled with a file per arch. 2018-04-10 15:06:47 +10:00
formatfloat.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
formatfloat.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
frozenmod.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
frozenmod.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
gc_long_lived.c Remove debug extern 2020-03-03 10:55:50 -08:00
gc_long_lived.h Introduce a long lived section of the heap. 2018-01-24 10:33:46 -08:00
gc.c Get AllocationAlarm working 2020-07-17 17:15:03 -07:00
gc.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
grammar.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
ioctl.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
lexer.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
lexer.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
makemoduledefs.py Add files via upload 2019-04-05 21:38:32 +02:00
makeqstrdata.py makeqstrdata: Work around python3.6 compatibility problem 2020-09-21 10:03:07 -05:00
makeqstrdefs.py Update filter and handle nested quotes 2018-08-09 14:16:28 -07:00
makeversionhdr.py Support internationalisation. 2018-08-07 14:58:57 -07:00
malloc.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
map.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
misc.h wip: compiles 2020-08-02 11:36:38 -04:00
mkenv.mk Use python3 for mpy-tool 2018-10-18 10:37:42 -07:00
mkrules.mk hci early wip; refactor supervisor bluetooth.c for nrf: tested 2020-06-25 20:57:17 -04:00
modarray.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modbuiltins.c Add basic error handling 2020-08-19 14:23:28 -07:00
modcmath.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modcollections.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modgc.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modio.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modmath.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modmicropython.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modstruct.c modstruct: Improve compliance with python3 2020-09-12 14:07:23 -05:00
modsys.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modthread.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
moduerrno.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
mpconfig.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
mperrno.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
mphal.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
mpprint.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
mpprint.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
mpstate.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
mpstate.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
mpthread.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
mpz.c Fix to pass mpy-cross build 2020-07-13 22:54:52 -05:00
mpz.h core: add int.bit_length() when MICROPY_CYPTHON_COMPAT is enabled 2020-09-06 09:53:16 -05:00
nativeglue.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
nlr.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
nlr.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
nlrsetjmp.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
nlrthumb.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
nlrx64.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
nlrx86.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
nlrxtensa.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
obj.c mp_obj_print_helper: Handle a ctrl-c that comes in during printing 2020-08-25 11:47:50 -05:00
obj.h Merge remote-tracking branch 'adafruit/main' into native_wifi 2020-09-03 16:34:56 -07:00
objarray.c modstruct: Improve compliance with python3 2020-09-12 14:07:23 -05:00
objarray.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objattrtuple.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objbool.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objboundmeth.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objcell.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objclosure.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objcomplex.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objdeque.c More make_new fixes for unix build 2019-01-18 11:53:09 -08:00
objdict.c "pop from empty %q" 2020-08-04 18:42:09 -05:00
objenumerate.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objexcept.c Add basic error handling 2020-08-19 14:23:28 -07:00
objexcept.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objfilter.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objfloat.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objfun.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objfun.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objgenerator.c remove new char*s because m0 is way oversubscribed 2020-07-23 20:41:10 -07:00
objgenerator.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objgetitemiter.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objint_longlong.c core: add int.bit_length() when MICROPY_CYPTHON_COMPAT is enabled 2020-09-06 09:53:16 -05:00
objint_mpz.c core: add int.bit_length() when MICROPY_CYPTHON_COMPAT is enabled 2020-09-06 09:53:16 -05:00
objint.c core: add int.bit_length() when MICROPY_CYPTHON_COMPAT is enabled 2020-09-06 09:53:16 -05:00
objint.h core: add int.bit_length() when MICROPY_CYPTHON_COMPAT is enabled 2020-09-06 09:53:16 -05:00
objlist.c "pop from empty %q" 2020-08-04 18:42:09 -05:00
objlist.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objmap.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objmodule.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objmodule.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objnamedtuple.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objnamedtuple.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objnone.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objobject.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objpolyiter.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
objproperty.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objproperty.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objrange.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objreversed.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objset.c Add FALLTHROUGH comments as needed 2020-09-12 15:11:29 -05:00
objsingleton.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objslice.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objstr.c Combine 'index out of range' messages 2020-08-04 14:45:45 -05:00
objstr.h Add externs. GCC10 complains about duplicate defines 2020-07-22 16:26:46 -07:00
objstringio.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objstringio.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objstrunicode.c Combine 'index out of range' messages 2020-08-04 14:45:45 -05:00
objtuple.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objtuple.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objtype.c various: Use mp_obj_get_type_qstr more widely 2020-08-04 14:45:45 -05:00
objtype.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
objzip.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
opmethods.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
parse.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
parse.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
parsenum.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
parsenum.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
parsenumbase.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
parsenumbase.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
persistentcode.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
persistentcode.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
proto.c various: Use mp_obj_get_type_qstr more widely 2020-08-04 14:45:45 -05:00
proto.h Fix up end of file and trailing whitespace. 2020-06-03 10:56:35 +01:00
py.mk wip: compiles 2020-08-02 11:36:38 -04:00
pystack.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
pystack.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
qstr.c sharpmemory: Implement support for Sharp Memory Displays in framebufferio 2020-08-12 07:32:18 -05:00
qstr.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
qstrdefs.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
reader.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
reader.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
reload.c move reload exception to reload.c 2018-05-14 17:41:17 -04:00
reload.h move reload exception to reload.c 2018-05-14 17:41:17 -04:00
repl.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
repl.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
ringbuf.c ringbuf tested 2020-04-21 22:40:12 -04:00
ringbuf.h ringbuf tested 2020-04-21 22:40:12 -04:00
runtime0.h add coroutine behavior for generators 2020-07-23 20:40:16 -07:00
runtime_utils.c WIP: after merge; before testing 2018-07-11 16:45:30 -04:00
runtime.c Make socket reads interruptable 2020-08-21 11:00:02 -07:00
runtime.h Make socket reads interruptable 2020-08-21 11:00:02 -07:00
scheduler.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
scope.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
scope.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
sequence.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
showbc.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
smallint.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
smallint.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
stackctrl.c Fix up end of file and trailing whitespace. 2020-06-03 10:56:35 +01:00
stackctrl.h Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 2017-08-25 22:17:07 -04:00
stream.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
stream.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
unicode.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
unicode.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
vm.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
vmentrytable.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
vstr.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
warning.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00