大约有 45,000 项符合查询结果（耗时：0.0393秒） [XML]
pip issue installing almost any library
...ll to get most of what I needed done, which has generally worked. However, now I'm trying to download the nltk library, and neither is getting the job done.
...
Regex for password must contain at least eight characters, at least one number and both lower and up
...avor, \W matches only ASCII characters. So you haven't changed that, and now you have to filter out whitespace characters. Furthermore, all the parentheses and {1,} quantifiers you added are pure noise, and removing the non-greedy (?) operators was pointless. There is no improvement here.
...
Determine if Android app is being used for the first time
...SET_APP_RUN_FIRST_TIME, "FIRST");
return App_runFirst;
}
}
Now Open Your Activity & Initialize .
private SharedPreference sharedPreferenceObj; // Declare Global
Now Call this in OnCreate section
sharedPreferenceObj=new SharedPreference(YourActivity.this)...
Simple Digit Recognition OCR in OpenCV-Python
... letter_recognition.data file that comes with OpenCV samples. I wanted to know what is inside that file.
It contains a letter, along with 16 features of that letter.
And this SOF helped me to find it. These 16 features are explained in the paperLetter Recognition Using Holland-Style Adaptive Class...
Run an OLS regression with Pandas Data Frame
...red positional argument: 'endog', so i guess it's deprecated. also, ols is now OLS
– 3pitt
May 18 '18 at 18:50
...
What version of Visual Studio is Python on my computer compiled with?
...obscure, lesson 1! Thanks this though Drorhan, it's definitely a "nice to know"!
– dm76
Apr 20 '10 at 16:37
A little l...
Is explicitly closing files important?
...ot good practice to leave your files open. In fact, in cpython 3 you will now get warnings that the system had to close files for you if you didn't do it.
Moral: Clean up after yourself. :)
share
|
...
Does SQLAlchemy have an equivalent of Django's get_or_create?
... new record, it will raise IntegrityError. The whole thing gets messed up, now we don't know what actually happened and we get another error, that no record is found.
– rajat
Oct 8 '15 at 19:31
...
How can I return two values from a function in Python?
......
>> ret_val = test()
>> print ret_val
(r1, r2, r3, ....)
now you can do everything you like with your tuple.
share
|
improve this answer
|
follow
...
Ruby Bundle Symbol not found: _SSLv2_client_method (LoadError)
...ng homebrew and I somehow managed to break everything. I can't do anything now, this is what I get when I try to do bundle install:
...