I'm trying data subscription feature of TDengine.
I tested its Python demo.
from taos.tmq import TaosConsumer
# Syntax: `consumer = TaosConsumer(*topics, **args)`
#
# Example:
consumer = TaosConsumer('topic1', 'topic2', td_connect_ip = "127.0.0.1", group_id = "local")
...
When executing the script, there is an error information:
ImportError: cannot import name 'TaosConsumer'
Did I miss some steps?
I think you need to update the version of taospy on your system - taospy is the TDengine connector for Python.
Try running pip install -U taospy to update it and then do your test again.
Make sure you're running Python 3.7 or later.
I need to check the change of one parameter, if it has changed - I need to restart the script.
code:
import subprocess, os.path, time
from engine.db_manager import DbManager
DB = DbManager(os.path.abspath(os.path.join('../webserver/db.sqlite3')))
tmbot = None
telegram_config = DB.get_config('telegram')
old_telegram_token = ''
vkbot = None
vk_config = DB.get_config('vk')
old_vk_token = ''
while True:
telegram_config = DB.get_config('telegram')
if old_telegram_token != telegram_config['token']:
if vkbot != None:
tmbot.terminate()
tmbot = subprocess.Popen(['python', 'tm/tm_bot.py'])
old_telegram_token = telegram_config['token']
print('telegram token was updated')
vk_config = DB.get_config('vk')
if old_vk_token != vk_config['token']:
if vkbot != None:
vkbot.terminate()
vkbot = subprocess.Popen(['python', 'vk/vk_bot.py'])
old_vk_token = vk_config['token']
print('vk token was updated')
time.sleep(30)
I get errors:
enter image description here
While there might be subtle differences between unix and windows, the straight-up answer is: you can use PYTHONPATH environment variable to let python know where to look for libraries.
However, if you use venv, I'd recommend activating it first, or calling the relevant binary instead of setting the environment variable.
Consider this scenario: you have a venv at /tmp/so_demo/venv, and you try to run this file:
$ cat /tmp/so_demo/myscript.py
import requests
print("great success!")
Running the system python interpreter will not find the requests module, and will yield the following error:
$ python3 /tmp/so_demo/myscript.py
Traceback (most recent call last):
File "/tmp/so_demo/myscript.py", line 1, in <module>
import requests
ModuleNotFoundError: No module named 'requests'
As I have installed requests in the venv, if I provide the path to python, it will know where to look:
$ PYTHONPATH='/tmp/so_demo/venv/lib/python3.8/site-packages/' python3 /tmp/so_demo/myscript.py
great success!
but using the binary inside the venv is better, as you don't need to be familiar with the internal venv directory paths, and is much more portable (notice that the path I provided earlier depicts the minor version):
$ /tmp/so_demo/venv/bin/python /tmp/so_demo/myscript.py
great success!
How do I run OpenERP on uWSGI?
I found this wsgi script online, but I'm not sure where to place it?
import openerp
try:
import uwsgi
uwsgi.port_fork_hook = openerp.wsgi.core.on_starting
except:
openerp.wsgi.core.on_starting()
# Equivalent of --load command-line option
openerp.conf.server_wide_modules = ['web']
# internal TODO: use openerp.conf.xxx when available
conf = openerp.tools.config
# Path to the OpenERP Addons repository (comma-separated for
# multiple locations)
conf['addons_path'] = '/home/openerp/addons/trunk,/home/openerp/web/trunk/addons'
# Optional database config if not using local socket
#conf['db_name'] = 'mycompany'
#conf['db_host'] = 'localhost'
#conf['db_user'] = 'foo'
#conf['db_port'] = 5432
#conf['db_password'] = 'secret'
# OpenERP Log Level
# DEBUG=10, DEBUG_RPC=8, DEBUG_RPC_ANSWER=6, DEBUG_SQL=5, INFO=20,
# WARNING=30, ERROR=40, CRITICAL=50
# conf['log_level'] = 20
# If --static-http-enable is used, path for the static web directory
#conf['static_http_document_root'] = '/var/www'
# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
application = openerp.wsgi.core.application
I installed OpenERP in a virtual environment in /var/www/openerp/venv and I can run it by calling $ openerp-server.
Thanks in advance.
you can just put the script file in the same directory with the openerp-server.py file.
however when I test it it doesnot work since gunicorn cannot find the openerp in the
import openerp sentence. the reason is that openerp is not installed as a python module to the system with the installation procedures around.
I think it will work when you do a openerp install with the DEB package. (when you make such install you should disable the start script so it will just work from gunicorn.
let me also make a test install and share the result.
I've created my setup.py file as instructed but I don't actually.. understand what to do next. Typing "python setup.py build" into the command line just gets a syntax error.
So, what do I do?
setup.py:
from cx_Freeze import setup, Executable
setup(
name = "On Dijkstra's Algorithm",
version = "3.1",
description = "A Dijkstra's Algorithm help tool.",
exectuables = [Executable(script = "Main.py", base = "Win32GUI")])
Add import sys as the new topline
You misspelled "executables" on the last line.
Remove script = on last line.
The code should now look like:
import sys
from cx_Freeze import setup, Executable
setup(
name = "On Dijkstra's Algorithm",
version = "3.1",
description = "A Dijkstra's Algorithm help tool.",
executables = [Executable("Main.py", base = "Win32GUI")])
Use the command prompt (cmd) to run python setup.py build. (Run this command from the folder containing setup.py.) Notice the build parameter we added at the end of the script call.
I'm really not sure what you're doing to get that error, it looks like you're trying to run cx_Freeze on its own, without arguments. So here is a short step-by-step guide on how to do it in windows (Your screenshot looks rather like the windows command line, so I'm assuming that's your platform)
Write your setup.py file. Your script above looks correct so it should work, assuming that your script exists.
Open the command line (Start -> Run -> "cmd")
Go to the location of your setup.py file and run python setup.py build
Notes:
There may be a problem with the name of your script. "Main.py" contains upper case letters, which might cause confusion since windows' file names are not case sensitive, but python is. My approach is to always use lower case for scripts to avoid any conflicts.
Make sure that python is on your PATH (read http://docs.python.org/using/windows.html)1
Make sure are are looking at the new cx_Freeze documentation. Google often seems to bring up the old docs.
I ran into a similar issue. I solved it by setting the Executable options in a variable and then simply calling the variable. Below is a sample setup.py that I use:
from cx_Freeze import setup, Executable
import sys
productName = "ProductName"
if 'bdist_msi' in sys.argv:
sys.argv += ['--initial-target-dir', 'C:\InstallDir\\' + productName]
sys.argv += ['--install-script', 'install.py']
exe = Executable(
script="main.py",
base="Win32GUI",
targetName="Product.exe"
)
setup(
name="Product.exe",
version="1.0",
author="Me",
description="Copyright 2012",
executables=[exe],
scripts=[
'install.py'
]
)
You can change the setup.py code to this:
from cx_freeze import setup, Executable
setup( name = "foo",
version = "1.1",
description = "Description of the app here.",
executables = [Executable("foo.py")]
)
I am sure it will work. I have tried it on both windows 7 as well as ubuntu 12.04
find the cxfreeze script and run it. It will be in the same path as your other python helper scripts, such as pip.
cxfreeze Main.py --target-dir dist
read more at:
http://cx-freeze.readthedocs.org/en/latest/script.html#script
I usually put the calling setup.py command into .bat file to easy recall.
Here is simple code in COMPILE.BAT file:
python setup.py build
#ECHO:
#ECHO . : ` . * F I N I S H E D * . ` : .
#ECHO:
#Pause
And the setup.py is organized to easy customizable parameters that let you set icon, add importe module library:
APP_NAME = "Meme Studio"; ## < Your App's name
Python_File = "app.py"; ## < Main Python file to run
Icon_Path = "./res/iconApp48.ico"; ## < Icon
UseFile = ["LANGUAGE.TXT","THEME.TXT"];
UseAllFolder = True; ## Auto scan folder which is same level with Python_File and append to UseFile.
Import = ["infi","time","webbrowser", "cv2","numpy","PIL","tkinter","math","random","datetime","threading","pathlib","os","sys"]; ## < Your Imported modules (cv2,numpy,PIL,...)
Import+=["pkg_resources","xml","email","urllib","ctypes", "json","logging"]
################################### CX_FREEZE IGNITER ###################################
from os import walk
def dirFolder(folderPath="./"): return next(walk(folderPath), (None, None, []))[1]; # [ Folder ]
def dirFile(folderPath="./"): return next(walk(folderPath), (None, None, []))[2]; # [ File ]
if UseAllFolder: UseFile += dirFolder();
import sys, pkgutil;
from cx_Freeze import setup, Executable;
BasicPackages=["collections","encodings","importlib"] + Import;
def AllPackage(): return [i.name for i in list(pkgutil.iter_modules()) if i.ispkg]; # Return name of all package
#Z=AllPackage();Z.sort();print(Z);
#while True:pass;
def notFound(A,v): # Check if v outside A
try: A.index(v); return False;
except: return True;
build_msi_options = {
'add_to_path': False,
"upgrade_code": "{22a35bac-14af-4159-7e77-3afcc7e2ad2c}",
"target_name": APP_NAME,
"install_icon": Icon_Path,
'initial_target_dir': r'[ProgramFilesFolder]\%s\%s' % ("Picox", APP_NAME)
}
build_exe_options = {
"includes": BasicPackages,
"excludes": [i for i in AllPackage() if notFound(BasicPackages,i)],
"include_files":UseFile,
"zip_include_packages": ["encodings"] ##
}
setup( name = APP_NAME,
options = {"build_exe": build_exe_options},#"bdist_msi": build_msi_options},#,
executables = [Executable(
Python_File,
base='Win32GUI',#Win64GUI
icon=Icon_Path,
targetName=APP_NAME,
copyright="Copyright (C) 2900AD Muc",
)]
);
The modules library list in the code above is minimum for workable opencv + pillow + win32 application.
Example of my project file organize:
========== U P D A T E ==========
Although cx_Freeze is a good way to create setup file. It's really consume disk space if you build multiple different software project that use large library module like opencv, torch, ai... Sometimes, users download installer, and receive false positive virus alert about your .exe file after install.
Thus, you should consider use SFX archive (.exe) your app package and SFX python package separate to share between app project instead.
You can create .bat that launch .py file and then convert .bat file to .exe with microsoft IExpress.exe.
Next, you can change .exe icon to your own icon with Resource Hacker: http://www.angusj.com/resourcehacker/
And then, create SFX archive of your package with PeaZip: https://peazip.github.io/
Finally change the icon.
The Python Package can be pack to .exe and the PATH register can made with .bat that also convertable to .exe.
If you learn more about command in .bat file and make experiments with Resource Hacker & self extract ARC in PeaZip & IExpress, you can group both your app project, python package into one .exe file only. It'll auto install what it need on user machine. Although this way more complex and harder, but then you can custom many install experiences included create desktop shorcut, and install UI, and add to app & feature list, and uninstall ability, and portable app, and serial key require, and custom license agreement, and fast window run box, and many more,..... but the important features you get is non virus false positive block, reduce 200MB to many GB when user install many your python graphic applications.