Reduce qutip import time by setting logger names (v5)

doc/changes/1981.feature

@@ -0,0 +1 @@
+Improve qutip import times by setting logger names explicitly.

qutip/control/dump.py

@@ -16,7 +16,7 @@
 import qutip.control.io as qtrlio
 # QuTiP logging
 import qutip.logging_utils
-logger = qutip.logging_utils.get_logger()
+logger = qutip.logging_utils.get_logger('qutip.control.dump')
 
 DUMP_DIR = "~/.qtrl_dump"
 

qutip/control/grape.py

@@ -17,7 +17,7 @@
 from qutip.control.cy_grape import cy_overlap, cy_grape_inner
 
 import qutip.logging_utils
-logger = qutip.logging_utils.get_logger()
+logger = qutip.logging_utils.get_logger('qutip.control.grape')
 
 
 class GRAPEResult:

qutip/control/optimconfig.py

@@ -13,7 +13,7 @@
 import qutip.control.io as qtrlio
 # QuTiP logging
 import qutip.logging_utils
-logger = qutip.logging_utils.get_logger()
+logger = qutip.logging_utils.get_logger('qutip.optimcontrol.grape')
 
 
 class OptimConfig(object):

qutip/core/semidefinite.py

@@ -18,7 +18,7 @@
 from .tensor import tensor_swap
 from .operators import qeye
 from ..logging_utils import get_logger
-logger = get_logger()
+logger = get_logger('qutip.core.semidefinite')
 
 Complex = collections.namedtuple('Complex', ['re', 'im'])
 

qutip/solve/steadystate.py

@@ -9,6 +9,7 @@
 
 import warnings
 import time
+import functools
 from packaging.version import parse as _parse_version
 
 import numpy as np
@@ -29,7 +30,7 @@
 from . import _steadystate
 
 import qutip.logging_utils
-logger = qutip.logging_utils.get_logger()
+logger = qutip.logging_utils.get_logger('qutip.solve.steadystate')
 logger.setLevel('DEBUG')
 
 # Load MKL spsolve if avaiable