How to import python file(.py) into a main python file
问题内容：
is there a way to import multiple python files into a main python file?
I have a bunch of py files and each one has to run in the main python file and
the data are saved into a json file.
This is what I tried and it gave me an error.
import light.py as light
Error:
Traceback (most recent call last):
File "<frozen importlib._bootstrap>", line 2218, in _find_and_load_unlocked
AttributeError: 'module' object has no attribute '__path__'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/pi/Desktop/majorproject/pillar1.py", line 8, in <module>
import sensorkey.py as sensorkey
ImportError: No module named 'sensorkey.py'; 'sensorkey' is not a package
I have also tried specifying the path to the py file and it didn’t work either
and keeps giving an invalid syntax error.
import /home/pi/Desktop/json/light.py as light
Update: I managed to fix the import error but i now, after importing this
light.py file, i have to print out certain keys from a dictionary (key) into
this new file then export it to a json file. I’m currently using TinyDB to do
so. Here are my codes:
from tinydb import TinyDB, Query
import json
from light import key
with open("/home/pi/Desktop/json/sensortestest.json", 'w+'):
db = TinyDB('/home/pi/Desktop/json/sensortestest.json')
table = db.table('Light')
db.insert_multiple([{'Key 1' :key[lightkey]}, {'Key 2' : key[lightkeyID]}])
Error:
Traceback (most recent call last):
File "/home/pi/Desktop/majorproject/testertestest.py", line 12, in <module>
db.insert_multiple([{'Key 1' :key[lightkey]}, {'Key 2' : key[lightkeyID]}])
NameError: name ‘lightkey’ is not defined
The problem is I had already defined ‘lightkey’ in its own file already.
问题答案：
To include the dictionary, you could do this if your file location is in
different directory (with caution of path.append as @Coldspeed
mentioned):
import sys
sys.path.append("path/foo/bar/")
from light import *
If it is in same directory as current directory, you could just do:
from light import *
