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Can a decorator of an instance method access the class?
...decorator, perhaps something like this (warning: untested code).
def class_decorator(cls):
for name, method in cls.__dict__.iteritems():
if hasattr(method, "use_class"):
# do something with the method and class
print name, cls
return cls
def method_decorator(v...
How to break out of multiple loops?
... exceptions is very frowned upon. Try-blocks are specifically designed for error handling, and using them for some strange control flow is not very good, stylistically.
– nobillygreen
Dec 26 '13 at 17:28
...
How does one reorder columns in a data frame?
... Why does the mtcars[c(1,3,2)] subsetting work? I would have expected an error relating to incorrect dimensions or similar... Shouldn't it be mtcars[,c(1,3,2)]?
– landroni
Aug 30 '15 at 13:07
...
What does “mro()” do?
...
Follow along...:
>>> class A(object): pass
...
>>> A.__mro__
(<class '__main__.A'>, <type 'object'>)
>>> class B(A): pass
...
>>> B.__mro__
(<class '__main__.B'>, <class '__main__.A'>, <type 'object'>)
>>> class C(A): pa...
How to import classes defined in __init__.py
...
'lib/'s parent directory must be in sys.path.
Your 'lib/__init__.py' might look like this:
from . import settings # or just 'import settings' on old Python versions
class Helper(object):
pass
Then the following example should work:
from lib.settings import Values
from l...
What is the difference between the different methods of putting JavaScript code in an ?
... to the javascript_required.html page and log the function that caused the error.
– Timo Huovinen
May 16 '12 at 17:05
2
...
How to make an introduction page with Doxygen
...|
edited Dec 22 '18 at 12:05
albert
5,17233 gold badges1313 silver badges2828 bronze badges
answered Feb...
How to print to console in pytest?
...as printed to standard out in that particular test.
For example,
def test_good():
for i in range(1000):
print(i)
def test_bad():
print('this should fail!')
assert False
Results in the following output:
>>> py.test tmp.py
============================= test session s...
Get Visual Studio to run a T4 Template on every build
...f you build your projects using x64 version of MSBuild - you will get this error: 'MSB4019: The imported project "C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\TextTemplating\v10.0\Microsoft.TextTemplating.targets" was not found.' error. Workaround - replace $(MSBuildExtensionsPath) variable...
Node.js: Difference between req.query[] and req.params
... req.query.currentPage
Why? If you delete + in this case, you will get an error, and that error will be thrown because we will use invalid type (with error message 'limit' field must be numeric).
Important: By default if you extracting something from these query parameters, it will always be a str...