I don't understand the syntax to call the render feature of ERAlchemy (https://pypi.org/project/ERAlchemy see "Usage for Python"). I am using Python 2.7, sqlite3, and PyCharm. I have ERAlchemy, GraphViz, and PyGraphViz installed.
I am trying the following, but it cannot connect to the database:
from eralchemy import render_er
render_er("sqlite:///C:\\Users\\myname\\Documents\\Work\\pythonsqlite.db", 'erd_from_sqlite.png')
And this is the error:
Traceback (most recent call last):
File "C:/Users/myname/Documents/Work/_sql_functions_rev0.py", line 81, in <module>
render_er("sqlite:///C:\\Users\\myname\\Documents\\Work\\pythonsqlite.db", 'erd_from_sqlite.png')
File "C:\Python27\ArcGISx6410.6\lib\site-packages\eralchemy\main.py", line 236, in render_er
intermediary_to_output(tables, relationships, output)
File "C:\Python27\ArcGISx6410.6\lib\site-packages\eralchemy\main.py", line 75, in intermediary_to_schema
graph.draw(path=output, prog='dot', format=extension)
File "C:\Python27\ArcGISx6410.6\lib\site-packages\pygraphviz\agraph.py", line 1474, in draw
data = self._run_prog(prog, args)
File "C:\Python27\ArcGISx6410.6\lib\site-packages\pygraphviz\agraph.py", line 1308, in _run_prog
runprog = r'"%s"' % self._get_prog(prog)
File "C:\Python27\ArcGISx6410.6\lib\site-packages\pygraphviz\agraph.py", line 1295, in _get_prog
raise ValueError("Program %s not found in path." % prog)
ValueError: Program dot not found in path.
Ah! Found the answer here
had to find the folder with "dot.exe" and add it to the environment variables -> system variables -> path
Related
Trying to modernize an old Django project (2.2), and its requirements.txt (generated via pip freeze) has some lines that make pip install throw fits:
distro-info===0.18ubuntu0.18.04.1
I interpreted the errors I got for the first one (see the error output in its entirety at the bottom) as the version string not conforming to PEP-518, but it doesn't even mention the === operator. This SO thread, What are triple equal signs and ubuntu2 in Python pip freeze?, has a similar issue, but:
The errors they got is different (ValueError as opposed to my ParseError).
The solution was to upgrade pip, but I'm already using the latest one.
Now, pip install distro-info works so should I just go with that?
update: The project I'm trying to update has been conceived around 2020, and according to the PyPI history of distro-info, it had a 0.10 release in 2013 and a 1.0 in 2021. Could this anything have to do with the weird pip freeze output? (From this PyPI support issue.)
The error:
ERROR: Exception:
Traceback (most recent call last):
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3021, in _dep_map
return self.__dep_map
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2815, in __getattr__
raise AttributeError(attr)
AttributeError: _DistInfoDistribution__dep_map
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/packaging/requirements.py", line 102, in __init__
req = REQUIREMENT.parseString(requirement_string)
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/pyparsing/core.py", line 1141, in parse_string
raise exc.with_traceback(None)
pip._vendor.pyparsing.exceptions.ParseException: Expected string_end, found '(' (at char 12), (line:1, col:13)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3101, in __init__
super(Requirement, self).__init__(requirement_string)
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/packaging/requirements.py", line 104, in __init__
raise InvalidRequirement(
pip._vendor.packaging.requirements.InvalidRequirement: Parse error at "'(===0.18'": Expected string_end
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_internal/cli/base_command.py", line 160, in exc_logging_wrapper
status = run_func(*args)
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_internal/cli/req_command.py", line 247, in wrapper
return func(self, options, args)
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_internal/commands/install.py", line 400, in run
requirement_set = resolver.resolve(
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_internal/resolution/resolvelib/resolver.py", line 92, in resolve
result = self._result = resolver.resolve(
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/resolvelib/resolvers.py", line 481, in resolve
state = resolution.resolve(requirements, max_rounds=max_rounds)
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/resolvelib/resolvers.py", line 373, in resolve
failure_causes = self._attempt_to_pin_criterion(name)
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/resolvelib/resolvers.py", line 213, in _attempt_to_pin_criterion
criteria = self._get_updated_criteria(candidate)
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/resolvelib/resolvers.py", line 203, in _get_updated_criteria
for requirement in self._p.get_dependencies(candidate=candidate):
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_internal/resolution/resolvelib/provider.py", line 237, in get_dependencies
return [r for r in candidate.iter_dependencies(with_requires) if r is not None]
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_internal/resolution/resolvelib/provider.py", line 237, in <listcomp>
return [r for r in candidate.iter_dependencies(with_requires) if r is not None]
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_internal/resolution/resolvelib/candidates.py", line 247, in iter_dependencies
requires = self.dist.iter_dependencies() if with_requires else ()
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_internal/metadata/pkg_resources.py", line 216, in iter_dependencies
return self._dist.requires(extras)
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2736, in requires
dm = self._dep_map
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3023, in _dep_map
self.__dep_map = self._compute_dependencies()
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3033, in _compute_dependencies
reqs.extend(parse_requirements(req))
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3094, in parse_requirements
yield Requirement(line)
File "/home/old-django-project/.venv/lib/python3.10/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3103, in __init__
raise RequirementParseError(str(e))
pip._vendor.pkg_resources.RequirementParseError: Parse error at "'(===0.18'": Expected string_end
Looks like your library was discontinued. In PyPi, infact, I can see there are only 1.0 and 0.10. If you need that specific version, then you need to setup a manual installation, downloading the source here. Either, you can upgrade your version and try to refactor any possible problem coming after!
In case, if you need to dockerize your app, setting up a script for the manual installation of a library is simple.
ModuleNotFoundError
ModuleNotFoundError: No module named 'authlib'
Traceback (most recent call last)
File "/usr/local/lib/python3.8/site-packages/flask/cli.py", line 184, in
find_app_by_string
app = call_factory(script_info, attr, args)
File "/usr/local/lib/python3.8/site-packages/flask/cli.py", line 119, in call_factory
return app_factory()
File "/app/superset/app.py", line 44, in create_app
raise ex
File "/app/superset/app.py", line 37, in create_app
app_initializer.init_app()
File "/app/superset/initialization/__init__.py", line 616, in init_app
self.init_app_in_ctx()
File "/app/superset/initialization/__init__.py", line 564, in init_app_in_ctx
File "/app/superset/initialization/__init__.py", line 656, in configure_fab
appbuilder.init_app(self.superset_app, db.session)
File "/usr/local/lib/python3.8/site-packages/flask_appbuilder/base.py", line 202, in
init_app
self.sm = self.security_manager_class(self)
File "/usr/local/lib/python3.8/site-
packages/flask_appbuilder/security/sqla/manager.py",
line 54, in __init__
super(SecurityManager, self).__init__(appbuilder)
File "/usr/local/lib/python3.8/site-packages/flask_appbuilder/security/manager.py",
line 263, in __init__
from authlib.integrations.flask_client import OAuth
ModuleNotFoundError: No module named 'authlib'
The debugger caught an exception in your WSGI application. You can now look at the
traceback which led to the error.
To switch between the interactive traceback and the plaintext one, you can click on
the "Traceback" headline. From the text traceback you can also create a paste of it.
For code execution mouse-over the frame you want to debug and click on the console
icon on the right side.
You can execute arbitrary Python code in the stack frames and there are some extra
helpers available for introspection:
dump() shows all variables in the frame
dump(obj) dumps all that's known about the object
This is my directory structure: /home/directory/superset/superset-frontend.
I'm runnning superset in docker and I'm trying to get OAuth working.
I’ve edited the config file and added the OAuth configuration.
One of the lines I added was:
AUTH_TYPE = AUTH_OAUTH
This required me to import the auth types as below:
from flask_appbuilder.security.manager import (
AUTH_OID,
AUTH_REMOTE_USER,
AUTH_DB,
AUTH_LDAP,
AUTH_OAUTH,
)
When I try running npm run dev-server in development mode in superset.
I get the following error:
ModuleNotFoundError
ModuleNotFoundError: No module named 'authlib'
I am trying to run the SONOS self test for a music service on Sonos.
After getting the dependencies, and filling out the config file, I try to run the python Sonos selftest, however it runs into an error and I have no clue what the underlying issue might be to get it running:
No handlers could be found for logger "smapi"
Traceback (most recent call last):
File "suite_selftest.py", line 226, in <module>
nightly_mode(parser.config_file)
File "suite_selftest.py", line 51, in nightly_mode
development_mode(config_file)
File "suite_selftest.py", line 186, in development_mode
fixtures.append(getlastupdate.PollingIntervalTest(suite.client, suite.smapiservice))
File "/Users/thomas/Desktop/PythonSelfTest/smapi/content_workflow/getlastupdate.py", line 20, in __init__
self.poll_interval = self.smapiservice.get_polling_interval()
File "../../sonos-1.1.0.dev_r300235-py2.7.egg/sonos/smapi/smapiservice.py", line 465, in get_polling_interval
File "/usr/local/Cellar/python#2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ConfigParser.py", line 362, in getfloat
return self._get(section, float, option)
File "/usr/local/Cellar/python#2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ConfigParser.py", line 356, in _get
return conv(self.get(section, option))
ValueError: could not convert string to float:
Found the fix already, forgot to add the Polling Interval in the config file...
I having a lot of trouble to install and config Django and Postgres so I can use them in eclipse.
I try to follow the instructions from this youtube video
but when I typed
ypolk -l
i got:
C:\Users\yaira\Documents\YASMIN\virtual_enviroments>yolk -l
Traceback (most recent call last):
File "C:\Users\yaira\AppData\Local\Programs\Python\Python36-32\Scripts\yolk-script.py", line 11, in <module>
load_entry_point('yolk==0.4.3', 'console_scripts', 'yolk')()
File "c:\users\yaira\appdata\local\programs\python\python36-32\lib\site-packages\pkg_resources\__init__.py", line 565, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "c:\users\yaira\appdata\local\programs\python\python36-32\lib\site-packages\pkg_resources\__init__.py", line 2631, in load_entry_point
return ep.load()
File "c:\users\yaira\appdata\local\programs\python\python36-32\lib\site-packages\pkg_resources\__init__.py", line 2291, in load
return self.resolve()
File "c:\users\yaira\appdata\local\programs\python\python36-32\lib\site-packages\pkg_resources\__init__.py", line 2297, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "c:\users\yaira\appdata\local\programs\python\python36-32\lib\site-packages\yolk\cli.py", line 262
print " %s %s (%s)" % (project_name, dist.version,
^
SyntaxError: invalid syntax
I have no idea what does it mean, and what to do do with those results.
It would appear as though yolk does not support Python 3 too well according to this bug report.
Their suggested solution is to try using yolk3k and uninstall yolk
Make sure you uninstall yolk before installing yolk3k so you can use the "yolk" commands in yolk3k
I have installed package envoy. I ran the script but a windows error occured .I commented envoy.run then the full script runs but when I remove the comment, error occurs.
import envoy
# This data is checked-in to the repository and is a compressed
# version of the output from Example 3
F = 'resources/ch06-mailboxes/data/enron.mbox.json.bz2'
r = envoy.run("bunzip2 %s" % (F,))
print r.std_out
print r.std_err
traceback of script:
Exception in thread Thread-9:
Traceback (most recent call last):
File "C:\Users\sachin\Anaconda\lib\threading.py", line 810, in __bootstrap_inner
self.run()
File "C:\Users\sachin\Anaconda\lib\threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
File "C:\Users\sachin\Anaconda\lib\site-packages\envoy\core.py", line 40, in target
bufsize=0,
File "C:\Users\sachin\Anaconda\lib\subprocess.py", line 709, in __init__
errread, errwrite)
File "C:\Users\sachin\Anaconda\lib\subprocess.py", line 957, in _execute_child
startupinfo)
WindowsError: [Error 2] The system cannot find the file specified
Please try this:
F = os.path.join(os.getcwd(), 'resources/ch06-mailboxes/data/enron.mbox.json.bz2')