Error: No module named 'google' (protobuf) #137
Description
I can't install protobuf on Android Pixel 7.
i used flask and protobuf lib in main.py
import sys
import traceback
from flask import Flask, jsonify
from werkzeug.exceptions import InternalServerError
from utils import succeed_protobuf
app = Flask(__name__)
@app.errorhandler(InternalServerError)
def handle_500_error(e):
exc_type, exc_value, exc_traceback = sys.exc_info()
trace = traceback.extract_tb(exc_traceback)
# Extract relevant information
error_info = {
'error': str(e),
'type': exc_type.__name__,
'message': str(exc_value),
'filename': trace[-1].filename,
'line_number': trace[-1].lineno,
'function': trace[-1].name,
'traceback': traceback.format_exc()
}
return jsonify(error_info), 500
@app.route("/sites/<site_id>", methods=["GET"])
async def site(site_id):
import extension_api_pb2 as pb2 # generated by protocol buffer compiler
site = pb2.Site(
id="1",
icon="https://komica1.org/favicon.ico",
name="komica1.org",
description="A description of komica1.org",
url="https://komica1.org"
)
response = pb2.GetSiteRes(site=site)
return succeed_protobuf(response)
port = 55001
print("Trying to run a socket server on:", port)
app.run(port=port)
requirements.txt
flask[async]==3.1.0
protobuf==5.28.3
a part of extension_api_pb2.py
# -*- coding: utf-8 -*-
# Generated by the protocol buffer compiler. DO NOT EDIT!
# NO CHECKED-IN PROTOBUF GENCODE
# source: extension_api.proto
# Protobuf Python Version: 5.29.0
"""Generated protocol buffer code."""
from google.protobuf import descriptor as _descriptor
from google.protobuf import descriptor_pool as _descriptor_pool
from google.protobuf import runtime_version as _runtime_version
from google.protobuf import symbol_database as _symbol_database
from google.protobuf.internal import builder as _builder
...
then i build it to twkevinzhang_komica.zip
dart run serious_python:main package app/src -p Android --requirements -r,app/src/requirements.txt --asset app/dist/twkevinzhang_komica.zip --verbose
in dart code, i catch the 500 status_code and print server_internal_error
Future<void> main() async {
final directory = await getApplicationSupportDirectory();
final appPath = "${directory.path}/from_github/twkevinzhang_komica"
Directory.current = path.dirname(appPath);
final program = "$appPath/main.py";
print("run $program");
SeriousPython.runProgram(program, environmentVariables: {});
await Future.delayed(const Duration(seconds: 10)); // wait flask server launched
final path = "sites/1";
try {
final res = await _dio.get("http://127.0.0.1:55001");
print("site res $res");
} on DioException catch (e) {
print("site error");
if (e.response != null) {
print(e.response!.data);
print(e.response!.headers);
print(e.response!.requestOptions);
} else {
print(e.requestOptions);
print(e.message);
}
throw e;
}
}
i get:
I/flutter ( 884): {error: 500 Internal Server Error: The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.,
filename: /data/user/0/tw.kevinzhang.news_hub/files/flasks/twkevinzhang_komica/extension_api_pb2.py, function: <module>,
line_number: 7,
message: **No module named 'google'**,
traceback: Traceback (most recent call last):
I/flutter ( 884): File "/data/user/0/tw.kevinzhang.news_hub/files/flet/python_site_packages/flask/app.py", line 1511, in wsgi_app
I/flutter ( 884): response = self.full_dispatch_request()
I/flutter ( 884): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I/flutter ( 884): File "/data/user/0/tw.kevinzhang.news_hub/files/flet/python_site_packages/flask/app.py", line 919, in full_dispatch_request
I/flutter ( 884): rv = self.handle_user_exception(e)
I/flutter ( 884): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I/flutter ( 884): File "/data/user/0/tw.kevinzhang.news_hub/files/flet/python_site_packages/flask/app.py", line 917, in full_dispatch_request
I/flutter ( 884): rv = self.dispatch_request()
I/flutter ( 884): ^^^^^^^^^^^^^^^^^^^^^^^
I/flutter ( 884): File "/data/us
I/flutter ( 884): connection: close
I/flutter ( 884): content-type: application/json
I/flutter ( 884): date: Mon, 10 Feb 2025 18:24:48 GMT
I/flutter ( 884): content-length: 2290
I/flutter ( 884): server: Werkzeug/3.1.3 Python/3.12.9
I/flutter ( 884): Instance of 'RequestOptions'
E/flutter ( 884): [ERROR:flutter/runtime/dart_vm_initializer.cc(40)] Unhandled Exception: DioException [bad response]: This exception was thrown because the response has a status code of 500 and RequestOptions.validateStatus was configured to throw for this status code.
E/flutter ( 884): The status code of 500 has the following meaning: "Server error - the server failed to fulfil an apparently valid request"
E/flutter ( 884): Read more about status codes at https://developer.mozilla.org/en-US/docs/Web/HTTP/Status
E/flutter ( 884): In order to resolve this exception you typically have either to verify and fix your request code or you have to fix the server code.
E/flutter ( 884):
E/flutter ( 884): #0 ExtensionHttpApiServiceImpl.site (package:news_hub/app/extension/extension_http_api_service_impl.dart:66:7)
E/flutter ( 884): <asynchronous suspension>
E/flutter ( 884): #1 ExtensionHttpApiServiceImpl.run (package:news_hub/app/extension/extension_http_api_service_impl.dart:37:5)
E/flutter ( 884): <asynchronous suspension>
E/flutter ( 884): #2 testApiService (package:news_hub/main.dart:51:3)
E/flutter ( 884): <asynchronous suspension>
then i check my Android device, no google or protobuf folders:
$ adb exec-out run-as tw.kevinzhang.news_hub ls /data/data/tw.kevinzhang.news_hub/files/flet/python_site_packages
MarkupSafe-2.1.5.dist-info frozenlist
aiohttp frozenlist-1.5.0.dist-info
aiohttp-3.9.5.dist-info idna
aiosignal idna-3.10.dist-info
aiosignal-1.3.2.dist-info itsdangerous
asgiref itsdangerous-2.2.0.dist-info
asgiref-3.8.1.dist-info jinja2
attr jinja2-3.1.5.dist-info
attrs markupsafe
attrs-25.1.0.dist-info multidict
bin multidict-6.1.0.dist-info
blinker propcache
blinker-1.9.0.dist-info propcache-0.2.1.dist-info
click werkzeug
click-8.1.8.dist-info werkzeug-3.1.3.dist-info
flask yarl
flask-3.1.0.dist-info yarl-1.18.3.dist-info
how can I install protobuf lib?