PiCamera through Terminal (write)

Question

I am trying to take a picture using my Raspberry Pi 3 & Raspberry Pi Camera from the terminal of my Mac laptop. I connect through SSH w/my IP address, then enter Python, then:

>>> import picamera
>>> camera = picamera.PiCamera()

After entering this the camera light comes on.

>>> camera.capture = (“test_image.jpg”)

After entering this I get the following error:

AttributeError: 'PiCamera' object attribute 'capture' is read-only

I get no errors using camera.capture(“test_image.jpg”) in Python on Raspian.

How do I enable the Mac write privileges for camera.capture, if that’s what I need to do? I know it must be something simple, but just haven’t found the right keywords to search.

Answer 1

Working directly on the Pi you enter:

camera.capture("test_image.jpg")

Working though the SSH session from your Mac you enter:

camera.capture = ("test_image.jpg") 

Notice the = sign in the line you entered on Mac. This results in an error, because you try to assign value to the capture() method of the PiCamera object.

SSH connection plays no role here. Everything you enter is executed and interpreted on the Pi.