one of my code lines is
import yaml
which was installed on python 3.7 using pip install pyyaml
the following error arises
Traceback (most recent call last):
File
"C:/code/EPMD/Kodex/Applications/EPMD-Software/Sandbox/peer_changing_send_rate.py",
line 1, in
from TestPeer.TestPeerChangingSendRate import TestPeerChangingSendSpeed
File "C:\code\EPMD\Kodex\Applications\EPMD-Software\TestPeer\TestPeerChangingSendRate.py",
line 1, in
from .TestPeer import TestPeer
File "C:\code\EPMD\Kodex\Applications\EPMD-Software\TestPeer\TestPeer.py",
line 4, in
from BaseProcess.ZmqPeerClass import ZmqPeer
File "C:\code\EPMD\Kodex\Applications\EPMD-Software\BaseProcess\ZmqPeerClass.py",
line 2, in
from .ZmqPublisherClass import ZmqPublisher
File "C:\code\EPMD\Kodex\Applications\EPMD-Software\BaseProcess\ZmqPublisherClass.py",
line 10, in
from . import ZmqProcessClass
File "C:\code\EPMD\Kodex\Applications\EPMD-Software\BaseProcess\ZmqProcessClass.py",
line 5, in
from .ConfigBaseClass import ConfigBase
File "C:\code\EPMD\Kodex\Applications\EPMD-Software\BaseProcess\ConfigBaseClass.py",
line 3, in
import yaml
File "C:\code\EPMD\Kodex\venv\lib\site-packages\yaml__init__.py", line 9, in
from .dumper import *
File "C:\code\EPMD\Kodex\venv\lib\site-packages\yaml\dumper.py", line 6, in
from .representer import *
File "C:\code\EPMD\Kodex\venv\lib\site-packages\yaml\representer.py", line
263, in
SafeRepresenter.add_representer(datetime.date, AttributeError: module 'datetime' has no attribute 'date'
How to I get import yaml to work?
You probably have a file called datetime.py in one of the directories shown in the error message (most probably C:/code/EPMD/Kodex/Applications/EPMD-Software/Sandbox/), if you do then you need to rename it to something that will not shadow any other Python module.
The reasoning is that it masks the actual datetime module, since files/directories/modules in the current working directory have precedence over the modules installed in the site-packages directory (in which the built-in and installed modules live). If both locations contain an a module then import a will import the local a module instead of the (probably) intended a module from site-packages.
When yaml\representer.py did import datetime it imported your datetime.py file/module which does not have a date attribute, which is why an AttributeError was raised when it later tried to use datetime.date.
Related
I can't program in python at all. I'm just trying to run the grgsm (gnu radio gsm) program, which is written in python. I get following error:
Traceback (most recent call last):
File "/usr/lib/python3.8/site-packages/grgsm/__init__.py", line 48, in <module>
from .grgsm_swig import *
File "/usr/lib/python3.8/site-packages/grgsm/grgsm_swig.py", line 13, in <module>
from . import _grgsm_swig
ImportError: libboost_program_options.so.1.71.0: cannot open shared object file: No such file or directory
Traceback (most recent call last):
File "/usr/bin/grgsm_livemon", line 37, in <module>
from grgsm import arfcn
File "/usr/lib/python3.8/site-packages/grgsm/__init__.py", line 48, in <module>
from .grgsm_swig import *
File "/usr/lib/python3.8/site-packages/grgsm/grgsm_swig.py", line 13, in <module>
from . import _grgsm_swig
ImportError: libboost_program_options.so.1.71.0: cannot open shared object file: No such file or directory
From the above message, I concluded that in the 13th line of the file "/usr/lib/python3.8/site-packages/grgsm/grgsm_swig.py" there is an import of the file "libboost_program_options.so.1.71.0", which is missing. Well, but in the 13th line of this file there is nothing about it. It looks like this:
# This file was automatically generated by SWIG (http://www.swig.org).
# Version 4.0.1
#
# Do not make changes to this file unless you know what you are doing--modify
# the SWIG interface file instead.
from sys import version_info as _swig_python_version_info
if _swig_python_version_info < (2, 7, 0):
raise RuntimeError("Python 2.7 or later required")
# Import the low-level C/C++ module
if __package__ or "." in __name__:
from . import _grgsm_swig # 13th line
else:
import _grgsm_swig
try:
import builtins as __builtin__
except ImportError:
import __builtin__
I also don't know why python wants this version of boost. If I knew where it is imported, I would simply change it to libboost_program_options.so without the version suffix (because of course I have boost installed).
Solution can be found here. Generally, uninstall it and reinstall its dependencies in the correct order.
I'm using the module subliminal to easily retrieve subtitles from the internet.
The CLI works perfectly, but I cannot import it as a module in a .py file.
The simplest code ever:
import os
from subliminal import scan_videos
videos = scan_videos('./')
print(videos)
And I always have this error:
Traceback (most recent call last):
File "subliminal.py", line 2, in <module>
from subliminal import scan_videos
File "/Users/louisbertin/Desktop/videos/subliminal.py", line 2, in <module>
from subliminal import scan_videos
ImportError: cannot import name 'scan_videos' from 'subliminal'
I don't know what I'm doing wrong. I had copy-pasted the code from the documentation:
https://github.com/Diaoul/subliminal
Seems like you called your script subliminal.py, which makes Python find it instead of the installed module. Rename the script and you should be fine.
I'm trying to submit a PR for scikit-image, but I get a Travis-CI error:
Traceback (most recent call last):
File "doc/examples/edges/plot_canny.py", line 22, in <module>
from skimage import feature
File "/home/travis/build/scikit-image/scikit-image/skimage/feature/__init__.py", line 9, in <module>
from .peak import peak_local_max
File "/home/travis/build/scikit-image/scikit-image/skimage/feature/peak.py", line 3, in <module>
from ..filters import rank_order
File "/home/travis/build/scikit-image/scikit-image/skimage/filters/__init__.py", line 11, in <module>
from ._frangi import frangi_filter, hessian_filter
File "/home/travis/build/scikit-image/scikit-image/skimage/filters/_frangi.py", line 2, in <module>
from skimage.feature import hessian_matrix, hessian_matrix_eigvals
ImportError: cannot import name hessian_matrix
I suppose that this might be a circular import error, but I don't quite get how to resolve the issue. I've already included frangi_filter and hessian_filter into filter's module __init__.py.
I've also tried relative import, which resulted into the same errors.
How can I do a proper import, so the circular import issue can be resolved?
One ugly hack to resolve this would be to move that import inside the function, like
def hessian_filter(image, scale=(1, 10), scale_ratio=2, beta1=0.5, beta2=15):
"""
Blah-blah-blah
"""
from ..feature import hessian_matrix, hessian_matrix_eigvals
# function body
You might want to create separate "proxy" functions for hessian_matrix and hessian_matrix_eigvals to not pollute every function with imports.
I have this project structure:
root_package/
root_package/packA/
root_package/packA/__init__.py (empty)
root_package/packA/moduleA.py
root_package/packB/__init__.py (empty)
root_package/packB/moduleB.py
root_package/rootModule.py
In the rootModule.py I have from packA.moduleA import ModuleAClass.
At the packA.moduleA.py I have this from root_package.packB.moduleB import ModuleBItem.
When running rootModule either via PyCharm or the terminal with python ./rootModule.py I am getting this error:
Was this the right way of importing?
Traceback (most recent call last):
File "/project_dir/rootPackage/rootModule.py", line 7, in <module>
from packA.moduleA import ModuleAClass
File "/project_dir/rootPackage/packA/moduleA.py", line 8, in <module>
from rootPackage.packB.moduleB import module_b_method
File "/project_dir/rootPackage/rootModule.py", line 7, in <module>
from packA.wavelet_compression import WaveletCompression
ImportError: cannot import name WaveletCompression
How to solve this?
Update 1
I've added a test file at the project_folder (not the root_package folder).
So the current directory structure is this:
project_folder/
project_folder/root_package/
project_folder/root_package/packA/
project_folder/root_package/packA/__init__.py (empty)
project_folder/root_package/packA/moduleA.py
project_folder/root_package/packB/__init__.py (empty)
project_folder/root_package/packB/moduleB.py
project_folder/root_package/rootModule.py
project_folder/test_rootModule.py
I haven't made the project_folder a package (no __init__.py file) since, the test_rootModule is simply a script to help me run the experiments.
So, in root_package/packA/moduleA.py, after changing the from root_package.packB.moduleB import ModuleBitem, to from packB.moduleB import ModuleBitem, as the answer suggests, it works.
But now there are two problems:
1. PyCharm doesn't agree with the change:
I cannot run my experiments from the project_folder/test_rootModule.py script.
I got this error:
Traceback (most recent call last):
File "project_folder/test_rootModule.py", line 8, in
from root_package.rootModule import rootModuleClass
File "project_folder/root_package/rootModule.py", line 7, in
from packA.moduleA import ModuleAClass
File "project_folder/root_package/packA/moduleA.py", line 8, in
from packB.moduleB import module_b_item
ImportError: No module named packB.moduleB
I cannot seem to get the 2nd Traceback to look like a code segment.
Update 2
What solved the problem was going to the Project: project_name > Project Structure dialog in PyCharm, selecting the root_package and then setting it as a Sources folder.
Now, I can run via the IDE both the rootModule and the test_rootModule.
Although, I cannot get to run the test_rootModule from the terminal.
The test_rootModule has these imports:
from root_package.rootModule import RootModuleClass
from root_package.packB.moduleB import module_b_item
I am at the project_folder dir, and run python ./test_rootModule.py and get this error:
Traceback (most recent call last):
File "./test_rootModule.py", line 8, in <module>
from root_package.rootModule import RootModuleClass
File "project_folder/root_package/rootModule.py", line 7, in <module>
from packA.moduleA import ModuleAClass
File "project_folder/root_package/packA/moduleA.py", line 8, in <module>
from packB.moduleB import module_b_item
ImportError: No module named packB.moduleB
If you are running all your code from within this path:
project_folder
Then you should ensure that all your modules that reside in root_package are referenced by that first. So for example:
from root_package.modA import foo
I'm stuck with imports and don't know how to address the issue.
I have 3 modules:
test_project.py
modules/__init__.py
r.py
module.py
module_configuration.py
The list of dependencies:
test_project.py IMPORTS modules/__init__.py
modules/__init__.py IMPORTS r.py
r.py IMPORTS > module_configuration.py
module_configuration.py IMPORTS > modules/__init__.py
So as you can see, we have a circular import here.
modules/__init__.py keeps dict of class definitions (class like R).
R class makes instance of ModuleConfiguration in its constructor
ModuleConfiguration needs dict of classes from modules/__init__.py.
Error message I get:
ERROR: controller.test_project (unittest.loader.ModuleImportFailure)
----------------------------------------------------------------------
ImportError: Failed to import test module: controller.test_project
Traceback (most recent call last):
File "/usr/lib/python2.7/unittest/loader.py", line 252, in _find_tests
module = self._get_module_from_name(name)
File "/usr/lib/python2.7/unittest/loader.py", line 230, in
_get_module_from_name__import__(name)
File "/media/103AEB9B3AEB7C5A/Projekty/c/svn/tests/controller/test_project.py",
line 9, in <module>
from c.core.modules import MODULES
File "/media/103AEB9B3AEB7C5A/Projekty/c/svn/tests/../c/core/modules/__init__.py", line 5, in <module>
from R import R
File "/media/103AEB9B3AEB7C5A/Projekty/c/svn/tests/../c/core/modules/R.py", line 6, in <module>
from c.core.module import Module
File "/media/103AEB9B3AEB7C5A/Projekty/c/svn/tests/../c/core/module.py", line 13, in <module>
from c.core.module_configuration import ModuleConfiguration
File "/media/103AEB9B3AEB7C5A/Projekty/c/svn/tests/../c/core/module_configuration.py", line 7, in <module>
from c.core.modules import MODULES
ImportError: cannot import name MODULES
Any ideas on how to solve it?
Instead of making the instances at module load time, implement functions returning the relevant results and keep these functions in their respective modules. Then once the modules are loaded everything is available to all.
There's nothing wrong with importing moduleA from moduleB and moduleB from moduleA.
Do you need module global objects that must be created at module load time? This is usually not needed. Instead try to construct whatever module globals are required at first use once all modules are in place.