For my project I use pyenchant library for spell checking and win32com.client.dispatch to call SAPI.SpVoice for automatic voiceovers. I have some Speech2Go packages installed and all worked fine until I decided it's time to move my project to Python 3.9. The only thing preventing me to do it is the new version of pyenchant, which uses the same DLL as Speech2Go, but the different version. By trial and error I deduced that the DLL in question is libstdc++-6.dll and I cannot force one of these 2 programs to use the same version neither I can rename the DLL obviously.
But it turned out that this code does not work in Python 3.9:
import win32com.client
speaker = win32com.client.Dispatch("SAPI.SpVoice")
def speaktest(text):
voices = speaker.GetVoices("Language = 409", 'Gender = Male')
for voice in voices:
desc = voice.GetDescription()
if "Eric" in desc:
speaker.Voice = voice
speaker.Speak(text)
break
if __name__ == '__main__':
speaktest("Hello")
import enchant
from enchant.checker import SpellChecker
After speaker.Speak(text) is called, provided a Speech2Go voice is selected (named "Eric" in my case, because that's what I have installed), I cannot load pyenchant because of this error:
Traceback (most recent call last):
File "C:\Users\User\AppData\Roaming\JetBrains\PyCharm2021.2\scratches\scratch_9.py", line 21, in <module>
import enchant
File "C:\Plan Z Editor XXL\venv\lib\site-packages\enchant\__init__.py", line 81, in <module>
from enchant import _enchant as _e
File "C:\Plan Z Editor XXL\venv\lib\site-packages\enchant\_enchant.py", line 162, in <module>
e = ctypes.cdll.LoadLibrary(enchant_lib_path)
File "C:\python39\lib\ctypes\__init__.py", line 452, in LoadLibrary
return self._dlltype(name)
File "C:\python39\lib\ctypes\__init__.py", line 374, in __init__
self._handle = _dlopen(self._name, mode)
OSError: [WinError 127] The specified procedure could not be found
Process finished with exit code 1
If I call speaktest after importing pyenchant, this happens:
Traceback (most recent call last):
File "C:\Users\User\AppData\Roaming\JetBrains\PyCharm2021.2\scratches\scratch_9.py", line 22, in <module>
speaktest("Hello")
File "C:\Users\User\AppData\Roaming\JetBrains\PyCharm2021.2\scratches\scratch_9.py", line 16, in speaktest
speaker.Speak(text)
File "C:\Users\USER\AppData\Local\Temp\gen_py\3.9\C866CA3A-32F7-11D2-9602-00C04F8EE628x0x5x4\ISpeechVoice.py", line 70, in Speak
return self._oleobj_.InvokeTypes(12, LCID, 1, (3, 0), ((8, 1), (3, 49)),Text
pywintypes.com_error: (-2147352567, 'Exception occurred.', (0, None, None, None, 0, -2147221164), None)
Process finished with exit code 1
What CAN be a working solution is to use multiprocessing to handle the speaking and making sure multiprocessing.freeze_support() is called before importing pyenchant, thus making different Python instances load different versions of libstdc++-6.dll, but since I already have a code base around both pyEnchant and SAPI.SpVoice and it works the way it is, it's not a good idea to rewrite all the code just because these 2 libraries conflict with each other.
That's why I'm here asking whether there is a much simpler method of resolving this conflict without rewriting a large chunk of code?
Related
Hello I am trying to create a C wrapper function for Python but I am having some trouble.
This is a simple test case that reproduces the problem. All the C function does is print the string given to it.
import ctypes
def test(hi):
fun = ctypes.CDLL(r"\cygwin64\home\User\test\test.so")
fun.print.argtypes = [ctype.c_char_p]
fun.print(hi)
test("pizza")
The error message I get is.
Traceback (most recent call last):
File "C:\cygwin64\home\CCSS Student\test\kdtw.py", line 25, in <module>
test('pizza')
File "C:\cygwin64\home\CCSS Student\test\kdtw.py", line 19, in test
fun = ctypes.CDLL(r"\cygwin64\home\CCSS Student\test\test.so")
File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\ctypes\__init__.py", line >364, in __init__
self._handle = _dlopen(self._name, mode)
OSError: [WinError 126] The specified module could not be found
I have tried giving the full path (including drive) and the file name and this file is in the same directory. The C file compiles to the .so file. One note is that I am on Windows which could make a difference.
I'm trying to get started using speech recognition in python. First I tried PySpeech (https://code.google.com/p/pyspeech/) using this code:
def listen():
while 1:
said = speech.input()
print said
if said == "off":
break
and got the following traceback:
Traceback (most recent call last):
File "C:/Users/REDACTED/Documents/Python Projects/listen.py", line 59, in <module> useful.listen()
File "C:/Users/REDACTED/Documents/Python Projects/listen.py", line 48, in listen
said = speech.input()
File "C:\Python27\lib\site-packages\speech.py", line 162, in input
listener = listenforanything(response)
File "C:\Python27\lib\site-packages\speech.py", line 193, in listenforanything
return _startlistening(None, callback)
File "C:\Python27\lib\site-packages\speech.py", line 223, in _startlistening
grammar = context.CreateGrammar()
File "C:\Users\REDACTED\AppData\Local\Temp\gen_py\2.7\C866CA3A-32F7-11D2-9602-00C04F8EE628x0x5x4.py", line 2298, in CreateGrammar
ret = self._oleobj_.InvokeTypes(14, LCID, 1, (9, 0), ((12, 49),),GrammarId
AttributeError: 'module' object has no attribute 'VARIANT'
Then I tried dragonfly per the suggestion at the top of the GoogleCode page for PySpeech using the following example code commonly found on dragonfly docs:
from dragonfly.all import Grammar, CompoundRule
# Voice command rule combining spoken form and recognition processing.
class ExampleRule(CompoundRule):
spec = "do something computer" # Spoken form of command.
def _process_recognition(self, node, extras): # Callback when command is spoken.
print "Voice command spoken."
# Create a grammar which contains and loads the command rule.
grammar = Grammar("example grammar") # Create a grammar to contain the command rule.
grammar.add_rule(ExampleRule()) # Add the command rule to the grammar.
grammar.load() # Load the grammar.
and got this very similar traceback:
Traceback (most recent call last):
File "C:/Users/REDACTED/Documents/Python Projects/listen.py", line 14, in <module>
grammar.load() # Load the grammar.
File "C:\Python27\lib\site-packages\dragonfly\grammar\grammar_base.py", line 302, in load
self._engine.load_grammar(self)
File "C:\Python27\lib\site-packages\dragonfly\engines\engine_sapi5.py", line 79, in load_grammar
handle = self._compiler.compile_grammar(grammar, context)
File "C:\Python27\lib\site-packages\dragonfly\engines\compiler_sapi5.py", line 68, in compile_grammar
grammar_handle = context.CreateGrammar()
File "C:\Users\REDACTED\AppData\Local\Temp\gen_py\2.7\C866CA3A-32F7-11D2-9602-00C04F8EE628x0x5x4.py", line 2298, in CreateGrammar
ret = self._oleobj_.InvokeTypes(14, LCID, 1, (9, 0), ((12, 49),),GrammarId
AttributeError: 'module' object has no attribute 'VARIANT'
Both modules were installed using PIP and run using python 2.7 interpreter. It seems like a python version issue to me given that the same error is thrown for two different modules implementing the same thing but I'm pretty stuck on how to proceed.
Any help is greatly appreciated and I'm happy to provide more code/info as its requested. Thanks!
EDIT 1: For anyone experiencing a similar problem who happens to stumble across this post, try https://pypi.python.org/pypi/SpeechRecognition/ as an alternative on py2.7. If it runs without error but behaves inconsistently or infinite loops, try modifying the init method of the recognizer class in init.py around line 100. The energy threshold required some tinkering for me (100->300) which is likely due to the specifics of your mic setup. I also increased my quiet duration (0.5->0.7) because it would cut me off sometimes. After these changes it works fairly well for me, returning very accurate text of the input speech in ~2 seconds after capture ends.
I'm trying to do this little tutorial http://www.roguebasin.com/index.php?title=Complete_Roguelike_Tutorial,_using_python%2Blibtcod,_part_1
A little ways down the page right before it says moving around it says to test what you have so far. I'm using Pycharm and this is my first time using an outside library or whatever you call it.
This is what I have so far and it is exactly what is in their example:
import libtcodpy as libtcod
#actual size of the window
SCREEN_WIDTH = 80
SCREEN_HEIGHT = 50
LIMIT_FPS = 20 #20 frames-per-second maximum
libtcod.console_set_custom_font('terminal.png', libtcod.FONT_TYPE_GREYSCALE | libtcod.FONT_LAYOUT_TCOD)
libtcod.console_init_root(SCREEN_WIDTH, SCREEN_HEIGHT, 'python/libtcod tutorial', False)
libtcod.sys_set_fps(LIMIT_FPS)
while not libtcod.console_is_window_closed():
libtcod.console_set_default_foreground(0, libtcod.white)
libtcod.console_put_char(0, 1, 1, '#', libtcod.BKGND_NONE)
libtcod.console_flush()
Whenever I run it I get this error.
Traceback (most recent call last):
File "D:\Programming\Project 1\Rogue Like\libtcodpy.py", line 57, in <module>
_lib = ctypes.cdll['./libtcod-mingw.dll']
File "C:\Python34\lib\ctypes\__init__.py", line 426, in __getitem__
return getattr(self, name)
File "C:\Python34\lib\ctypes\__init__.py", line 421, in __getattr__
dll = self._dlltype(name)
File "C:\Python34\lib\ctypes\__init__.py", line 351, in __init__
self._handle = _dlopen(self._name, mode)
OSError: [WinError 126] The specified module could not be found
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "D:/Programming/Project 1/Rogue Like/firstrl.py", line 1, in <module>
import libtcodpy as libtcod
File "D:\Programming\Project 1\Rogue Like\libtcodpy.py", line 60, in <module>
_lib = ctypes.cdll['./libtcod-VS.dll']
File "C:\Python34\lib\ctypes\__init__.py", line 426, in __getitem__
return getattr(self, name)
File "C:\Python34\lib\ctypes\__init__.py", line 421, in __getattr__
dll = self._dlltype(name)
File "C:\Python34\lib\ctypes\__init__.py", line 351, in __init__
self._handle = _dlopen(self._name, mode)
OSError: [WinError 126] The specified module could not be found
Thanks
I'm assuming you also copied libtcod-VS.dll or libtcod-mingw.dll to the project directory, not just libtcodpy.py. And also SDL.dll and a arial10x10.png. If not, go back and look at the Setting it up instructions again.
But if you have, this isn't really your fault, it's theirs.
libtcodpy.py tries to import the libtcod-VS.dll or libtcod-mingw.dll DLL from the current working directory. You can see that from this line:
_lib = ctypes.cdll['./libtcod-mingw.dll']
So, if the current working directory happens to be anything other than the directory that libtcodpy.py is in, it won't find them there.
This is a silly thing to do. If you do what the Choice of code editor section suggests and always run the script from a console (a "DOS prompt"), it will work (as long as you're always running it without an explicit path), but they really shouldn't be relying on that.
Still, that's obviously the simplest fix: Run the program from the console, the way they're expecting you to, instead of from PyCharm.
Alternatively, you can configure PyCharm to run your project with the project directory as your working directory.
There are a few ways to set this, but the one you probably want is the Run/Debug Configurations dialog (which you can find under Edit Configurations… on the Run menu). Open that dialog, open the disclosure triangle to Defaults, click Python, then look for "Working directory:" on the right. Click the … button and pick your project directory (or wherever you put libtcod-VS.dll or libtcod-mingw.dll).
Or you can edit libtcodpy.py to make it look for the DLL alongside of itself, rather than in the current working directory. There are only 4 small changes you should need.
First, in the middle of the import statements near the top, if there's no import os, add it.
Next, right after the import statements, add this:
modpath = os.path.dirname(os.path.abspath(__FILE__))
Now search for the two lines that start with _lib = ctypes.dll (or just look at the line numbers from the tracebacks) and change them as follows:
_lib = ctyles.cdll(os.path.join(modpath, 'libtcod-mingw.dll'))
_lib = ctyles.cdll(os.path.join(modpath, 'libtcod-VS.dll'))
I've just been struggling with the same problem myself, though I'm using Emacs and Python 2.7.
What solved the problem for me was installing a 32-bit python instead of a 64-bit python. The .dlls in libtcod are 32-bit, and 64-bit python on Windows isn't compatible with 32-bit .dlls.
Also, you might want to check if libtcod is compatible with python 3. I've found two places where the subject is discussed, but I can't tell if libtcod-1.5.1 is compatible with the later 3.xs.
I'd also suggest trying to run the samples_py.py in the libtcod folder to test these two problems, as if that runs it's your folder setup or path, rather then your version of python.
I am trying to get the usb.find command to work properly in a python script I'm writing on Angstrom for the Beagleboard.
Here is my code:
#!/usr/bin/env python
import usb.core
import usb.util
import usb.backend.libusb01 as libusb
PYUSB_DEBUG_LEVEL = 'debug'
# find our device
# Bus 002 Device 006: ID 1208:0815
# idVendor 0x1208
# idProduct 0x0815
# dev = usb.core.find(idVendor=0xfffe, idProduct=0x0001)
# iManufacturer 1 TOROBOT.com
dev = usb.core.find(idVendor=0x1208, idProduct=0x0815,
backend=libusb.get_backend() )
I don't know what's missing, but here is what I do know.
When I don't specify the backend, no backend is found. When I do specify the backend "usb.backend.libusb01" I get the following error:
root#beagleboard:~/servo# ./pyServo.py
Traceback (most recent call last):
File "./pyServo.py", line 17, in <module>
dev = usb.core.find(idVendor=0x1208, idProduct=0x0815, backend=libusb.get_backend() )
File "/usr/lib/python2.6/site-packages/usb/core.py", line 854, in find
return _interop._next(device_iter(k, v))
File "/usr/lib/python2.6/site-packages/usb/_interop.py", line 60, in _next
return next(iter)
File "/usr/lib/python2.6/site-packages/usb/core.py", line 821, in device_iter
for dev in backend.enumerate_devices():
File "/usr/lib/python2.6/site-packages/usb/backend/libusb01.py", line 390, in enumerate_devices
_check(_lib.usb_find_busses())
File "/usr/lib/python2.6/ctypes/__init__.py", line 366, in __getattr__
func = self.__getitem__(name)
File "/usr/lib/python2.6/ctypes/__init__.py", line 371, in __getitem__
func = self._FuncPtr((name_or_ordinal, self))
AttributeError: python: undefined symbol: usb_find_busses
What am I missing so that this will work properly?
Thank you.
Python, pyusb, libusb.
I think that's it.
Well libc, ld-linux.so too of course, but those are in your system by default.
Do nm -D /path-to/libusb.so and see if usb_find_busses symbol is really there. There's always a chance that your libusb is outdated or somehow specially compiled.
Check if you get any log, for example missing libusb.so should produce something like 'Error loading libusb 0.1 backend'
I have a program that uses the win32com library to control iTunes, but have been having some issues getting it to compile into an executable. The problem seems to revolve around using DispatchWithEvents instead of Dispatch. I've created a very simple program to illustrate my problem:
import win32com.client
win32com.client.gencache.is_readonly = False #From py2exe wiki
class ITunesEvents(object):
def __init__(self): self.comEnabled = True
def OnCOMCallsDisabledEvent(self, reason): self.comEnabled = False
def OnCOMCallsEnabledEvent(self): self.comEnabled = True
# The first line works in the exe, the second doesn't.
itunes = win32com.client.Dispatch("iTunes.Application")
#itunes = win32com.client.DispatchWithEvents("iTunes.Application", ITunesEvents)
lib = getattr(itunes, "LibraryPlaylist")
src = getattr(lib, "Source")
playlists = getattr(src, "Playlists")
print "Found %i playlists." % getattr(playlists, "Count")
Using Dispatch, the program compiles and runs correctly. Using DispatchWithEvents, the program runs fine when called from the command line, but produces the following error when running the exe:
Traceback (most recent call last):
File "sandbox.py", line 16, in <module>
itunes = win32com.client.DispatchWithEvents("iTunes.Application", ITunesEvents)
File "win32com\client\__init__.pyc", line 252, in DispatchWithEvents
File "win32com\client\gencache.pyc", line 520, in EnsureModule
File "win32com\client\gencache.pyc", line 287, in MakeModuleForTypelib
File "win32com\client\makepy.pyc", line 259, in GenerateFromTypeLibSpec
File "win32com\client\gencache.pyc", line 141, in GetGeneratePath
IOError: [Errno 2] No such file or directory: '[distDir]\\library.zip\\win32com\\gen_py\\__init__.py'
I've also tried using PyInstaller, which gives a similar error:
File "<string>", line 16, in <module>
File "[outDir]/win32com.client", line 252, in DispatchWithEvents
File "[outDir]/win32com.client.gencache", line 520, in EnsureModule
File "[outDir]/win32com.client.gencache", line 287, in MakeModuleForTypelib
File "[outDir]/win32com.client.makepy", line 286, in GenerateFromTypeLibSpec
File "[outDir]/win32com.client.gencache", line 550, in AddModuleToCache
File "[outDir]/win32com.client.gencache", line 629, in _GetModule
File "[pyinstallerDir]\iu.py", line 455, in importHook
raise ImportError, "No module named %s" % fqname
ImportError: No module named win32com.gen_py.9E93C96F-CF0D-43F6-8BA8-B807A3370712x0x1x13
I know I can manually add the typelib in my setup.py file, but I'd like to run the code on computers with different versions of iTunes without recompiling so I'd prefer to dynamically create it. If there's no way to do this with the setup/spec, maybe there is another way to load the events? Thanks.
Addition:
Thanks to Ryan, I found I could take the generated py file and after a little digging, was able to come up with the following.
Take the generated py file (from makepy.py) and rename it somewhere like cominterface.py. Then you'll need to do the following to actually create the COM object with event handler.
import cominterface
from types import ClassType
from win32com.client import EventsProxy, _event_setattr_
class ItunesEvents:
'''iTunes events class. See cominterface for details.'''
def OnPlayerPlayEvent(self, t):print "Playing..."
def OnPlayerStopEvent(self, t): print "Stopping..."
itunes = cominterface.iTunesApp()
rClass = ClassType("COMEventClass", (itunes.__class__, itunes.default_source, ItunesEvents), {'__setattr__': _event_setattr_})
instance = rClass(itunes._oleobj_)
itunes.default_source.__init__(instance, instance)
#ItunesEvents.__init__(instance) #Uncomment this line if your events class has __init__.
itunes = EventsProxy(instance)
Then you can go about your business.
I was experiencing the exact same error.
This link put me in the right direction -->
http://www.py2exe.org/index.cgi/UsingEnsureDispatch
however it mentions that :
NB You must ensure that the python...\win32com.client.gen_py dir does not exist
to allow creation of the cache in %temp%
Which was a bit confusing.
What solved it for me was renaming "C:\Python26\Lib\site-packages\win32com\gen_py" to "C:\Python26\Lib\site-packages\win32com\gen_pybak" (when running py2exe)
This is the official way to do it.
(Edit: copied verbatim example from that link above)
import win32com.client
if win32com.client.gencache.is_readonly == True:
#allow gencache to create the cached wrapper objects
win32com.client.gencache.is_readonly = False
# under p2exe the call in gencache to __init__() does not happen
# so we use Rebuild() to force the creation of the gen_py folder
win32com.client.gencache.Rebuild()
# NB You must ensure that the python...\win32com.client.gen_py dir does not exist
# to allow creation of the cache in %temp%
# Use SAPI speech through IDispatch
from win32com.client.gencache import EnsureDispatch
from win32com.client import constants
voice = EnsureDispatch("Sapi.SpVoice", bForDemand=0)
voice.Speak( "Hello World.", constants.SVSFlagsAsync )
Instead of depending on the cache, I'd recommend going into the local cache directory, copying the generated file into your local project file, and naming it something like ITunesInterface.py, and calling to that explicitly. This will make py2exe pull it into your compiled app.