Python 2 / IronPython: Helpers - Devolens (formerly Cryptolens) Documentation

Python 2 / IronPython implementation. Reviewed source revision.

from cryptolens_python2 import Helpers

These legacy helpers do not accept a v argument. Use the signatures below rather than copying a Python 3 v=2 call.

GetMachineCode

Compute this device’s machine code.

Helpers.GetMachineCode()

Result

Returns the machine code computed by this implementation. Operating-system commands or unexpected system information can raise an exception. Handle a failure to compute an identifier before activating.

Checks

Computes an identifier only. It does not contact the licensing API or verify a license.

Example

The legacy helper has no version parameter. Use the same identifier when activating and comparing the returned license.

machine_code = Helpers.GetMachineCode()
print(machine_code)

IsOnRightMachine

Check whether the license contains the expected device or process identifier.

Helpers.IsOnRightMachine(
    license_key,
    is_floating_license=False,
    allow_overdraft=False,
    custom_machine_code=None
)

Parameters

Parameter	Default	Meaning
`license_key`	Required	A successfully loaded `LicenseKey` object.
`is_floating_license`	`False`	Use the floating-activation form of the machine-code comparison.
`allow_overdraft`	`False`	Also accept the overdraft form of a floating activation. This does not enable overdraft on the server.
`custom_machine_code`	`None`	The identifier already used for activation; supplying it skips local machine-code generation.

Result

Returns True when an activation matches, otherwise False. In floating mode, this implementation expects exactly one returned activation. A missing license object or a failure while computing its machine code can raise an exception. Check that license loading or activation succeeded first.

Checks

Compares the identifier using the legacy floating/overdraft format when requested. It does not verify the signature, expiry or floating deadline. Machine checks require Maximum Number of Machines greater than 0.

FAQ

Can I Pass v=2 to the Legacy Machine Helpers?

No. Neither GetMachineCode nor IsOnRightMachine in this implementation has a v parameter. You can supply an identifier to IsOnRightMachine through custom_machine_code; activate with the same value.

Can I Use a Custom ID for a Floating Process?

Yes. Pass your process ID as machine_code to activation and as custom_machine_code to IsOnRightMachine, with is_floating_license=True. Keep that ID until the process stops. This legacy floating check expects one activation in the returned license.

Python SDK Reference

​GetMachineCode

​Result

​Checks

​Example

​IsOnRightMachine

​Parameters

​Result

​Checks

​FAQ

GetMachineCode

Result

Checks

Example

IsOnRightMachine

Parameters

Result

Checks

FAQ