# Import OriginPro library
    import originpro as op
    # Start Origin instance
    def origin_shutdown_exception_hook(exctype, value, traceback):
        '''Ensures Origin gets shut down if an uncaught exception'''
        op.exit()
        sys.__excepthook__(exctype, value, traceback)

    if op and op.oext:
        sys.excepthook = origin_shutdown_exception_hook

    # Attach to running Origin project, if one is open
    op.attach()

quote:

---

Originally posted by ChemistryGuy

Origin Ver. and Service Release: 2022b
Operating System: Windows 11

I have developed a Python program that automates Origin to perform some tasks, which I have distributed to many users.

However, some users have older versions of Origin, which lack Python compatibility. When they try to use the program it does not succeed.

I want to display a meaningful error message when this happens. However I do not have an older version of Origin to test my code on.

Therefore I wanted to ask the Origin team, please would you advise me if there is a way to check the user's Origin version via Python? For instance, if I run the below code, is an exception raised?

    # Import OriginPro library
    import originpro as op
    # Start Origin instance
    def origin_shutdown_exception_hook(exctype, value, traceback):
        '''Ensures Origin gets shut down if an uncaught exception'''
        op.exit()
        sys.__excepthook__(exctype, value, traceback)

    if op and op.oext:
        sys.excepthook = origin_shutdown_exception_hook

    # Attach to running Origin project, if one is open
    op.attach()

---

#get Origin version number
v = op.lt_float('@V') # v >= 9.8 for Origin 2021 or later

------------------------------------------
       Be The Change
             You Want To See
                   In The World
------------------------------------------

import originpro as op
import time

#init op, and it takes some time
op.lt_exec('ty hello')

tic = time.perf_counter()
v = op.lt_float('@V')
toc = time.perf_counter()
print(f'get version took {toc - tic:0.4f} seconds')

try:
    op.attach()
except:
    v = op.lt_float('@V')  # v >= 9.8 for Origin 2021 or later
    if v < 9.8:
        print("Your Origin version does not support Python connectivity. Please install Origin 2021 or later.")
    else:
        print("Origin failed to attach for some other reason.")
else:
    print("Origin attached successfully.")

try:
 import originpro as op
except:
 print("originpro package requires Origin 2021 or later.")
else:
 print("import successfully.")

quote:

---

Originally posted by ChemistryGuy

Once again I really appreciate your quick reply.

However, I have found that this takes 3 seconds to execute, which could be inconvenient for users if it runs every time they use the code.

Is there possibly any quicker method of checking this?

---

------------------------------------------
       Be The Change
             You Want To See
                   In The World
------------------------------------------