I am trying to make a very simple application that allows for people to define their own little python scripts within the application. I want to execute the code in a new process to make it easy to kill later. Unfortunately, Python keeps giving me the following error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/externalshell/sitecustomize.py", line 540, in runfile
execfile(filename, namespace)
File "/home/skylion/Documents/python_exec test.py", line 19, in <module>
code_process = Process(target=exec_, args=(user_input_code))
File "/usr/lib/python2.7/multiprocessing/process.py", line 104, in __init__
self._args = tuple(args)
TypeError: 'code' object is not iterable
>>>
My code is posted below
user_input_string = '''
import os
world_name='world'
robot_name='default_body + os.path.sep'
joint_names=['hingejoint0', 'hingejoint1', 'hingejoint2', 'hingejoint3', 'hingejoint4', 'hingejoint5', 'hingejoint6', 'hingejoint7', 'hingejoint8']
print(joint_names)
'''
def exec_(arg):
exec(arg)
user_input_code = compile(user_input_string, 'user_defined', 'exec')
from multiprocessing import Process
code_process = Process(target=exec_, args=(user_input_code))
code_process.start()
What am I missing? Is there something wrong with my user_input_string? With my compile options? Any help would be appreciated.
I believe args must be a tuple. To create a single-element tuple, add a comma like so: args=(user_input_code,)
Related
So I am trying to run and learn all about the vishnubob/kinet api.
After I download it I try to run the example script (also after fixing a couple syntax errors) I get this error:
Traceback (most recent call last):
File "example.py", line 31, in <module>
pds = PowerSupply("192.168.1.121")
NameError: name 'PowerSupply' is not defined
I have no clue why this is happening, as the imports look good (to me at least).
If someone knows why or can point me to the right direction then I would be grateful.
The clue here is "fixing syntax errors". That code has been written for Python 2, and it uses a thing called implicit relative import which was removed in Python 3. Namely the line in kinet/__init__.py
from kinet import *
is trying to import from the top-level package in Python 3, when Python 2 defaulted to importing from a local module first (kinet/kinet.py). The fix is to change this to
from .kinet import *
However this leads down the rabbit hole, as kinet.py has more syntax errors, after which it just fails spectacularly with
Traceback (most recent call last):
File "example.py", line 31, in <module>
pds = PowerSupply("192.168.1.121")
File "./kinet/kinet.py", line 227, in __init__
self.header = Header()
File "./kinet/kinet.py", line 22, in __init__
self._struct = struct.Struct(self.struct_format)
File "./kinet/kinet.py", line 61, in __setattr__
if key not in self.Keys:
File "./kinet/kinet.py", line 56, in __getattr__
if key not in self.Keys:
File "./kinet/kinet.py", line 56, in __getattr__
if key not in self.Keys:
File "./kinet/kinet.py", line 56, in __getattr__
if key not in self.Keys:
[Previous line repeated 325 more times]
RecursionError: maximum recursion depth exceeded while calling a Python object
It is a bad piece of code written using all the syntax that was deprecated already in Python 2.6. I'd look for a Python 3 rewrite instead of trying to fix that.
I am trying to understand how to use the Pathos package to run a function that calls a function. It was my understanding an the advantage of Pathos over the main multiprocessing package was that it allowed functions inside functions. However, I can't seem to make it work. Here is the simplest example I could come up with:
def testf(x):
print(x)
import dill
import pathos
from pathos.multiprocessing import ProcessingPool
pool = ProcessingPool(nodes=3)
out2 = pool.map(testf, [1,2,3,4,5,6,7,8,9])
pool.close()
Output:
multiprocess.pool.RemoteTraceback:
"""
Traceback (most recent call last):
File "/home/james/.local/lib/python3.6/site-packages/multiprocess/pool.py", line 119, in worker
result = (True, func(*args, **kwds))
File "/home/james/.local/lib/python3.6/site-packages/multiprocess/pool.py", line 44, in mapstar
return list(map(*args))
File "/home/james/.local/lib/python3.6/site-packages/pathos/helpers/mp_helper.py", line 14, in <lambda>
func = lambda args: f(*args)
File "<input>", line 2, in testf
NameError: name 'print' is not defined
"""
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "<input>", line 5, in <module>
File "/home/james/.local/lib/python3.6/site-packages/pathos/multiprocessing.py", line 136, in map
return _pool.map(star(f), zip(*args)) # chunksize
File "/home/james/.local/lib/python3.6/site-packages/multiprocess/pool.py", line 260, in map
return self._map_async(func, iterable, mapstar, chunksize).get()
File "/home/james/.local/lib/python3.6/site-packages/multiprocess/pool.py", line 608, in get
raise self._value
NameError: name 'print' is not defined
Edit: It seems that if I paste this code into a shell console, it works fine. No dice if I run it from my IDE of choice, PyCharm. So now my question is why the same code would work differently in the same version of the python interpreter (3.6.1) based on whether it is run from a shell or the in-app console/
I'm trying to automate tasks for teamcenter using pywinauto python module.But I was not able to work properly with TreeViews. When ever I'm trying to use GetItem(),SubElements(),Item() and many other function under _treeview_element giving error.Please look into below errors.
I'm using python 2.7 and i also have pywin32 module installed
for i in range(tr.ItemCount()):
print tr.GetItem(i)
Traceback (most recent call last):
File "<pyshell#61>", line 2, in <module>
print tr.GetItem(i) File "C:\Users\patibj\Desktop\pywinauto-
master\pywinauto\controls\common_controls.py", line 1010, in GetItem
if isinstance(path[0], int):
TypeError: 'int' object has no attribute '__getitem__'
This is when i'm trying to use GetChild()
a[0] is <pywinauto.controls.common_controls._treeview_element object at 0x02EC11B0> a[0].GetChild((1))
Traceback (most recent call last):
File "<pyshell#49>", line 1, in <module>
a[0].GetChild((1))
File "C:\Users\patibj\Desktop\pywinauto- master\pywinauto\controls\common_controls.py", line 840, in GetChild
return self.Children()[index]
File "C:\Users\patibj\Desktop\pywinauto-master\pywinauto\controls\common_controls.py", line 739, in Children
if self.Item().cChildren not in (0, 1):
File "C:\Users\patibj\Desktop\pywinauto-master\pywinauto\controls\common_controls.py", line 539, in Item
return self._readitem()[0]
File "C:\Users\patibj\Desktop\pywinauto-master\pywinauto\controls\common_controls.py", line 904, in _readitem
raise ctypes.WinError() WindowsError: [Error 0] The operation completed successfully.
Please help me out .Thanks in advance.
TreeViewWrapper.GetItem() method gets path argument which should be the string starting with back-slash \\ symbol. Example:
app.Dialog.TreeView.GetItem('\\1st_level_item_name\\2ndlevelitem').Click()
For access by index use a list of integers:
app.Dialog.TreeView.GetItem([1, 0])
GetChild() works with explorer.exe TreeView:
>>> tree.GetItem([1]).GetChild(2).Text()
u'Computer'
I am new to python. I am trying to use track_from_file method in pyechonest to create a track object. This is the code I wrote:
from pyechonest import config
from pyechonest.track import track_from_file
config.ECHO_NEST_API_KEY = "KRZG4XOVUQRKI45DP"
f = open("ShayneWard-NoPromises.mp3")
t = track_from_file(f, 'mp3')
But this is not working. I got an EchoNestIOError. This is the full error Traceback that i got.
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "build/bdist.linux-x86_64/egg/pyechonest/track.py", line 243, in track_from_file
File "build/bdist.linux-x86_64/egg/pyechonest/track.py", line 331, in track_from_md5
File "build/bdist.linux-x86_64/egg/pyechonest/track.py", line 209, in _profile
File "build/bdist.linux-x86_64/egg/pyechonest/util.py", line 257, in callm pyechonest.util.
EchoNestIOError: Echo Nest Unknown Error
Can anyone tell me what have I done wrong?
I finally figured it out. It seems that the upload does not take place through the proxy server of my university network which uses NAT.
I'm trying to connect to wiimote via Python on mac osx 10.7.2.
For that I'm trying to use lightblue. When running: import lightblue Python gives me this error.
>>> import lightblue
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/lightblue/__init__.py", line 160, in <module>
from _lightblue import *
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/lightblue/_lightblue.py", line 27, in <module>
import _IOBluetooth
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/lightblue/_IOBluetooth.py", line 47, in <module>
globals=globals())
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC/objc/_bridgesupport.py", line 142, in initFrameworkWrapper
_parseBridgeSupport(data, globals, frameworkName)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC/objc/_bridgesupport.py", line 42, in _parseBridgeSupport
objc.parseBridgeSupport(data, globals, frameworkName, *args, **kwds)
ValueError: cftype for 'IOBluetoothDeviceInquiryRef' must include gettypeid_func, tollfree or both
I found one with a similar problem here: http://python.6.n6.nabble.com/Python-bridgesupport-issue-on-Lion-td2161049.html#a32196961 but the answer doesn't help me much, since it seems to me that it is already using lightblue's files. Any suggestions?
Seems like a bug with Apple's gen_bridge_metadata script. You can make the error go away by editing the generated file by hand.
Open up /System/Library/Frameworks/IOBluetooth.framework/Versions/Current/Resources/BridgeSupport/IOBluetooth.bridgesupport and delete the lines that start with <cftype.