Frappe.logger().info() doesn’t work → Logging might be disabled or misconfigured

hello .
i have custom_app named diamondpharma.
file api.py is created inside :

def test(doc=None, method=None):
    
    frappe.logger().info("Issue { successfully raised_by  {}".format(doc.name,doc.raised_by))
    frappe.msgprint("Issue {} successfully raised by {}".format(doc.name, doc.raised_by))

in hooks.py :

doc_events = {
    "Issue": {
        "validate": "diamondpharma.diamondpharma.api.test"
    },
}

I intentionally removed } from frappe.logger().info(.
An error is supposed to appear.

I see it when I change the value of a certain field in the Issue doctype.
The error does not appear when I press F12.

erpnext@erp:~/frappe-bench/sites/kelioa/logs$ bench execute diamondpharma.diamondpharma.api.test --kwargs "{'doc': {'name': 'ISS-2025-00067'}, 'method': 'validate'}"
Traceback (most recent call last):
  File "/home/erpnext/frappe-bench/apps/frappe/frappe/commands/utils.py", line 269, in execute
    ret = frappe.get_attr(method)(*args, **kwargs)
  File "/home/erpnext/frappe-bench/apps/diamondpharma/diamondpharma/diamondpharma/api.py", line 222, in test
    frappe.logger().info("Issue { successfully raised_by  {}".format(doc.name,doc.raised_by))
ValueError: unexpected '{' in field name

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/home/erpnext/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 114, in <module>
    main()
  File "/home/erpnext/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 20, in main
    click.Group(commands=commands)(prog_name="bench")
  File "/home/erpnext/frappe-bench/env/lib/python3.10/site-packages/click/core.py", line 1161, in __call__
    return self.main(*args, **kwargs)
  File "/home/erpnext/frappe-bench/env/lib/python3.10/site-packages/click/core.py", line 1082, in main
    rv = self.invoke(ctx)
  File "/home/erpnext/frappe-bench/env/lib/python3.10/site-packages/click/core.py", line 1697, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/erpnext/frappe-bench/env/lib/python3.10/site-packages/click/core.py", line 1697, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/erpnext/frappe-bench/env/lib/python3.10/site-packages/click/core.py", line 1443, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/erpnext/frappe-bench/env/lib/python3.10/site-packages/click/core.py", line 788, in invoke
    return __callback(*args, **kwargs)
  File "/home/erpnext/frappe-bench/env/lib/python3.10/site-packages/click/decorators.py", line 33, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/home/erpnext/frappe-bench/apps/frappe/frappe/commands/__init__.py", line 29, in _func
    ret = f(frappe._dict(ctx.obj), *args, **kwargs)
  File "/home/erpnext/frappe-bench/apps/frappe/frappe/commands/utils.py", line 272, in execute
    ret = eval(method + "(*args, **kwargs)", globals(), locals())  # nosemgrep
  File "<string>", line 1, in <module>
NameError: name 'diamondpharma' is not defined

Note :
this is from executing the function :
bench execute diamondpharma.diamondpharma.api.test --kwargs “{‘doc’: {‘name’: ‘ISS-2025-00067’}, ‘method’: ‘validate’}”

instead of the error comes according to this method , only this error :
Failed to load resource: the server responded with a status of 500 (INTERNAL SERVER ERROR)

appeared .

why the explanation not showed up ?
please help .

for info :

erpnext@erp:~/frappe-bench/sites/kelioa/logs$ bench list-apps

frappe        15.54.1 version-15
erpnext       15.50.0 version-15
chat          0.0.1   main
diamondpharma 0.0.4   master
scienceoffice 0.0.1   master
hrms          15.39.0 version-15
payments      0.0.1   develop
healthcare    15.0.3  version-15

as you can see diamondpharma is installed .

can any one help me please (any missing configuration) ?

second problem :

frappe.logger().info("Issue {} successfully raised_by  {}".format(doc.name,doc.raised_by))

where should the value of this function appeared and show up ?

It’s simply frappe.log(“…”)

Regarding your other issue, I assume the dotted path should be diamondpharma.api (if your api.py file is in the same directory as hooks.py)

no it is not in the same path .
and yes i know frappe.log() but i need to know why the error showed up in bench execute while :
image
not showed up