Flask(flask db init): AttributeError: module 'time' has no attribute 'clock'

Issue

While following a Flask tutorial I stumbled around this very strange problem! While setting up the Migrate directory , after the first step of setting the flask app using set FLASK_APP=sql1.py, when I ran this command flask db init I got this error:

(first_flask_env) C:\Users\aakash\Desktop\python programs>flask db init
Traceback (most recent call last):
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\aakash\Anaconda3\envs\first_flask_env\Scripts\flask.exe\__main__.py", line 7, in <module>
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\flask\cli.py", line 894, in main
    cli.main(args=args, prog_name=name)
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\flask\cli.py", line 557, in main
    return super(FlaskGroup, self).main(*args, **kwargs)
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\click\core.py", line 697, in main
    rv = self.invoke(ctx)
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\click\core.py", line 1061, in invoke
    cmd_name, cmd, args = self.resolve_command(ctx, args)
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\click\core.py", line 1100, in resolve_command
    cmd = self.get_command(ctx, cmd_name)
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\flask\cli.py", line 500, in get_command
    self._load_plugin_commands()
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\flask\cli.py", line 496, in _load_plugin_commands
    self.add_command(ep.load(), ep.name)
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\pkg_resources\__init__.py", line 2472, in load
    return self.resolve()
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\pkg_resources\__init__.py", line 2478, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\flask_migrate\__init__.py", line 8, in <module>
    from alembic import __version__ as __alembic_version__
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\alembic\__init__.py", line 8, in <module>
    from . import op  # noqa
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\alembic\op.py", line 1, in <module>
    from .operations.base import Operations
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\alembic\operations\__init__.py", line 1, in <module>
    from .base import Operations, BatchOperations
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\alembic\operations\base.py", line 3, in <module>
    from .. import util
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\alembic\util\__init__.py", line 6, in <module>
    from .pyfiles import (  # noqa
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\alembic\util\pyfiles.py", line 6, in <module>
    from mako.template import Template
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\mako\template.py", line 10, in <module>
    from mako.lexer import Lexer
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\mako\lexer.py", line 11, in <module>
    from mako import parsetree, exceptions, compat
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\mako\parsetree.py", line 9, in <module>
    from mako import exceptions, ast, util, filters, compat
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\mako\exceptions.py", line 11, in <module>
    from mako import util, compat
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\mako\util.py", line 11, in <module>
    from mako import compat
  File "c:\users\aakash\anaconda3\envs\first_flask_env\lib\site-packages\mako\compat.py", line 124, in <module>
    time_func = time.clock
AttributeError: module 'time' has no attribute 'clock'

I’m getting the exact same error while running my .py script also,here’s the script:

from flask import Flask
import os
from flask_sqlalchemy import SQLAlchemy 
from flask_migrate import Migrate

basedir = os.path.abspath(os.path.dirname(__file__))   #Full directory path of the file I'm working with..here, sql1.py

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(basedir, 'data.sqlite')
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False 
db = SQLAlchemy(app)

Migrate(app,db) #Here it connect the application "app.py"
                # with the database "db"    
class puppy(db.Model):
    __tablename__ = 'Name Provided by me!!'
    id = db.Column(db.Integer,primary_key = True)
    name = db.Column(db.Text)
    age = db.Column(db.Integer)
    
    def __init__(self,name,age):
        self.name = name
        self.age = age
    def __repr__(self):
        return f"puppy {self.name} is {self.age} year/s old!"

I looked into every solution I found (here and this)and made sure everything was correct! I ran this command when my environment was activated which had installed every package needed including SQLAlchemy and Flask-Migrate.

I even deleted them (packages) and re-installed their latest versions but still getting the same error!
I’m using Python 3.8.5

Solution

You have some dependencies that are too old and incompatible with Python 3.8. At the very least, you should update the mako package:

pip install --upgrade mako

Answered By – Miguel

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