https://pylint.pycqa.org/en/latest/user_guide/messages/convention/unnecessary-lambda-assignment.html:
> Used when a lambda expression is assigned to variable rather than
defining a standard function with the "def" keyword.
https://peps.python.org/pep-0008/#programming-recommendations:
> Always use a def statement instead of an assignment statement that
binds a lambda expression directly to an identifier:
def f(x): return 2*x
f = lambda x: 2*x
The first form means that the name of the resulting function object is
specifically ‘f’ instead of the generic ‘<lambda>’. This is more useful
for tracebacks and string representations in general. The use of the
assignment statement eliminates the sole benefit a lambda expression can
offer over an explicit def statement (i.e. that it can be embedded
inside a larger expression)
Fixes: https://pagure.io/freeipa/issue/9278
Signed-off-by: Stanislav Levin <slev@altlinux.org>
Reviewed-By: Stanislav Levin <slev@altlinux.org>
Fix the following violations aiming to support Pylint 2.0
- `unneeded-not` (C0113):
Consider changing "not item in items" to "item not in items" used
when a boolean expression contains an unneeded negation.
- `useless-import-alias` (C0414):
Import alias does not rename original package Used when an import
alias is same as original package.e.g using import numpy as numpy
instead of import numpy as np
- `raising-format-tuple` (W0715):
Exception arguments suggest string formatting might be intended Used
when passing multiple arguments to an exception constructor, the
first of them a string literal containing what appears to be
placeholders intended for formatting
- `bad-continuation` (C0330):
This was already included on the disable list, although with current
version of pylint (2.0.0.dev2) violations at the end of the files
are not being ignored.
See: https://github.com/PyCQA/pylint/issues/2278
- `try-except-raise` (E0705):
The except handler raises immediately Used when an except handler
uses raise as its first or only operator. This is useless because it
raises back the exception immediately. Remove the raise operator or
the entire try-except-raise block!
- `consider-using-set-comprehension` (R1718):
Consider using a set comprehension Although there is nothing
syntactically wrong with this code, it is hard to read and can be
simplified to a set comprehension.Also it is faster since you don't
need to create another transient list
- `dict-keys-not-iterating` (W1655):
dict.keys referenced when not iterating Used when dict.keys is
referenced in a non-iterating context (returns an iterator in
Python 3)
- `comprehension-escape` (W1662):
Using a variable that was bound inside a comprehension Emitted when
using a variable, that was bound in a comprehension handler, outside
of the comprehension itself. On Python 3 these variables will be
deleted outside of the comprehension.
Issue: https://pagure.io/freeipa/issue/7614
Signed-off-by: Armando Neto <abiagion@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Aiming to support pylint 2.0 some functions and methods must have their
return statements updated in order to fix two new violations:
- `useless-return` (R1711):
Useless return at end of function or method Emitted when a single
"return" or "return None" statement is found at the end of function
or method definition. This statement can safely be removed because
Python will implicitly return None
- `inconsistent-return-statements` (R1710):
Either all return statements in a function should return an
expression, or none of them should. According to PEP8, if any return
statement returns an expression, any return statements where no value
is returned should explicitly state this as return None, and an
explicit return statement should be present at the end of the
function (if reachable)
Issue: https://pagure.io/freeipa/issue/7614
Signed-off-by: Armando Neto <abiagion@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
The AdminTool class purports to "call sys.exit() with the return
value" but most of the run implementations returned no value, or
the methods they called returned nothing so there was nothing to
return, so this was a no-op.
The fix is to capture and bubble up the return values which will
return 1 if any exceptions are caught.
This potentially affects other users in that when executing the
steps of an installer or uninstaller the highest return code
will be the exit value of that installer.
Don't use the Continuous class because it doesn't add any
value and makes catching the exceptions more difficult.
https://pagure.io/freeipa/issue/7330
Signed-off-by: Rob Crittenden rcritten@redhat.com
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Remove logger arguments in all functions and logger attributes in all
objects, with the exception of API object logger, which is now deprecated.
Replace affected logger calls with module-level logger calls.
Reviewed-By: Martin Basti <mbasti@redhat.com>
************* Module ipaserver.install.ipa_kra_install
ipaserver/install/ipa_kra_install.py:25: [W0402(deprecated-module), ] Uses of a deprecated module 'optparse')
************* Module ipapython.install.core
ipapython/install/core.py:163: [E1101(no-member), _knob] Module 'types' has no 'TypeType' member)
************* Module ipatests.test_ipapython.test_dn
ipatests/test_ipapython/test_dn.py:1205: [W1505(deprecated-method), TestDN.test_x500_text] Using deprecated method assertEquals())
************* Module ipa-ca-install
install/tools/ipa-ca-install:228: [E1101(no-member), install_master] Instance of 'ValueError' has no 'message' member)
install/tools/ipa-ca-install:232: [E1101(no-member), install_master] Instance of 'ValueError' has no 'message' member)
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Simo Sorce <ssorce@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Re-introduce option groups in ipa-client-install, ipa-server-install and
ipa-replica-install.
https://pagure.io/freeipa/issue/6392
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
`Knob` function is an old implementation which was replcaed by `knob`
function and currently is unused, so it can be removed
https://fedorahosted.org/freeipa/ticket/6392
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Add new @group decorator to declare an installer class as a knob group
instead of subclassing Group, so that subclassing the installer does not
create duplicates of the original group.
https://fedorahosted.org/freeipa/ticket/6392
Reviewed-By: Martin Basti <mbasti@redhat.com>
Declare knob bases explicitly using a keyword argument instead of guessing
if the type argument is a base or a type of the knob.
https://fedorahosted.org/freeipa/ticket/6392
Reviewed-By: Martin Basti <mbasti@redhat.com>
Replace cli_name, cli_short_name and cli_positional knob arguments with a
single cli_names argument, which allows defining one or more CLI names
using the argparse convention ("--option" for long option name, "-o" for
short option name and "argument" for positional argument name).
Also replace cli_aliases with cli_deprecated_names which uses the same
convention.
https://fedorahosted.org/freeipa/ticket/6392
Reviewed-By: Martin Basti <mbasti@redhat.com>
Use type(None) rather than bool to define knobs which are represented as
command line flags. This allows declaring both "--option" and
"--option={0,1}"-style command line options.
Use enum.Enum subclasses instead of set literals to declare enumerations.
Use typing.List[T] instead of (list, T) to declare lists. (Note that a
minimal reimplementation of typing.List is used instead of the Python 2
backport of the typing module due to non-technical reasons.)
Use CheckedIPAddress instead of 'ip' and 'ip-local' to declare IP
addresses.
https://fedorahosted.org/freeipa/ticket/6392
Reviewed-By: Martin Basti <mbasti@redhat.com>
Add new knob() knob constructor. Keep the old Knob() constructor for
backward compatibility with old code.
https://fedorahosted.org/freeipa/ticket/6392
Reviewed-By: Martin Basti <mbasti@redhat.com>
Instead of specifying which knobs should be positional arguments in
cli.install_tool(), do it using a flag in knob definition, where the rest
of CLI configuration is.
As a side effect, the usage string for CLI tools can now be generated
automatically.
https://fedorahosted.org/freeipa/ticket/6392
Reviewed-By: Martin Basti <mbasti@redhat.com>
Unused variables may:
* make code less readable
* create dead code
* potentialy hide issues/errors
Enabled check should prevent to leave unused variable in code
Check is locally disabled for modules that fix is not clear or easy or have too many occurences of
unused variables
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
`common.Continuous` class is a basis for uninstallers, which should execute
all the steps regardless of occuring errors. However, we would like the
installer to raise exceptions and return non-zero exit code during validation
phase when some preconditions are not met.
Add a separate exception handler which catches exceptions and logs them as
errors during execution phase only.
https://fedorahosted.org/freeipa/ticket/5725
Reviewed-By: Petr Spacek <pspacek@redhat.com>
installer framework has been modified to allow for different error handling
during validation and execution phases.
https://fedorahosted.org/freeipa/ticket/5725
Reviewed-By: Petr Spacek <pspacek@redhat.com>
Py3 does not support iter* methods, this commit replaces 2 occurencies
of iteritems() to items(). The dictionaries there are not big, this is
sufficient we do not need to use six.
https://fedorahosted.org/freeipa/ticket/5623
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
Metaclass specification is incompatible between Python 2 and 3. Use the
six.with_metaclass helper to specify metaclasses.
Reviewed-By: Petr Viktorin <pviktori@redhat.com>
The three-argument raise is going away in Python 3. Use the six.reraise
helper instead.
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
In Python 3, next() for iterators is a function rather than method.
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
Python 2 has keys()/values()/items(), which return lists,
iterkeys()/itervalues()/iteritems(), which return iterators,
and viewkeys()/viewvalues()/viewitems() which return views.
Python 3 has only keys()/values()/items(), which return views.
To get iterators, one can use iter() or a for loop/comprehension;
for lists there's the list() constructor.
When iterating through the entire dict, without modifying the dict,
the difference between Python 2's items() and iteritems() is
negligible, especially on small dicts (the main overhead is
extra memory, not CPU time). In the interest of simpler code,
this patch changes many instances of iteritems() to items(),
iterkeys() to keys() etc.
In other cases, helpers like six.itervalues are used.
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
