大约有 3,200 项符合查询结果（耗时：0.0220秒） [XML]
How to override the copy/deepcopy operations for a Python object?
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Following Peter's excellent answer, to implement a custom deepcopy, with minimal alteration to the default implementation (e.g. just modifying a field like I needed) :
class Foo(object):
def __deepcopy__(self, memo):
deepcopy_metho...
Pass all variables from one shell script to another?
...f the parent script is possible but that would not be the same process. An excellent explanation can be found in here.
– DocSalvager
Feb 16 '18 at 19:18
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How to make graphics with transparent background in R using ggplot2?
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This works excellent with MS Powerpoint 2010. Actually, I needed it right for this purpose.
– Yuriy Petrovskiy
Sep 18 '11 at 14:11
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How to unset a JavaScript variable?
...ment "delete is supposed to be a no-op" is rather inaccurate along with an excellent exlpanation why it is inaccurate. (Don't shoot the messenger!)
– Rob Wells
Jul 9 '12 at 14:30
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Random string generation with upper case letters and digits
...ce(string.ascii_uppercase + string.digits) for _ in range(N))
This is an excellent method, but the PRNG in random is not cryptographically secure. I assume many people researching this question will want to generate random strings for encryption or passwords. You can do this securely by making a s...
ElasticSearch - Return Unique Values
... I believe this answer is wrong. The cardinality aggregation is an excellent tool. However, the task was to retrieve the terms themselves, not estimate how many different terms there are.
– Anton
Oct 12 '16 at 13:31
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How do I browse an old revision of a Subversion repository through the web view?
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Excellent work. Much simpler than the accepted answer.
– pmckeown
Jan 8 '15 at 1:19
add a comment
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Compare object instances for equality by their attributes
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Raymond Hettinger's 2018 PyCon presentation is an excellent way to get started with Python Dataclasses.
– Sarath Chandra
Jun 5 at 13:46
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Does SQLAlchemy have an equivalent of Django's get_or_create?
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A modified version of erik's excellent answer
def get_one_or_create(session,
model,
create_method='',
create_method_kwargs=None,
**kwargs):
try:
return s...
How to check for valid email address? [duplicate]
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I found an excellent (and tested) way to check for valid email address. I paste my code here:
# here i import the module that implements regular expressions
import re
# here is my function to check for valid email address
def test_emai...