Python Forum

@snippsat I REALLY appreciate your detailed response. I tried adopting your example in my script and received the following-

[INFO] starting cameras...
Traceback (most recent call last):
  File "/home/pi/Public/2Cameras.py", line 64, in <module>
    send_mail(frame=frame)
  File "/home/pi/Public/send_mail.py", line 30, in send_mail
    datetime.datetime(2019, 3, 11, 0, 0)
AttributeError: type object 'datetime.datetime' has no attribute 'datetime'
>>> 

This was the code-

def send_mail(frame):

    path = os.path.dirname(sys.argv[0])
    log_file = path + '/email.log'

    # Check if the last email was sent in an 1 minute tolerance.
    # We are going to use a .log file to keep track of it.
    if os.path.isfile(log_file): # First check if file exists.
        with open(log_file, 'r') as f:
            date = '2019-03-11'
            date_to_datetime = datetime.strptime(date, "%Y-%m-%d")
            datetime.datetime(2019, 3, 11, 0, 0)

            if datetime.now() < date_to_datetime + timedelta(minutes=1):
                return

    # Update the email log.
    with open(log_file, 'w') as f:
        f.write(str(datetime.now()))

Import i use is from datetime import datetime
If just use import datetime then call is like this.

>>> import datetime
>>>
>>> date = '2019-03-11'
>>> date_to_datetime = datetime.datetime.strptime(date, "%Y-%m-%d")
>>> date_to_datetime
datetime.datetime(2019, 3, 11, 0, 0)