大约有 6,400 项符合查询结果（耗时：0.0281秒） [XML]
Installing SciPy and NumPy using pip
...depended on numpy and scipy. In a clean installation of Fedora 23, using a python virtual environment for Python 3.4 (also worked for Python 2.7), and with the following in my setup.py (in the setup() method)
setup_requires=[
'numpy',
],
install_requires=[
'numpy',
'scipy',
],
I found...
Reloading submodules in IPython
Currently I am working on a python project that contains sub modules and uses numpy/scipy. Ipython is used as interactive console. Unfortunately I am not very happy with workflow that I am using right now, I would appreciate some advice.
...
Ignore .pyc files in git repository
...which will be captured by his find command.
For example:
./app.pyc
./lib/python2.7/_weakrefset.pyc
./lib/python2.7/abc.pyc
./lib/python2.7/codecs.pyc
./lib/python2.7/copy_reg.pyc
./lib/python2.7/site-packages/alembic/__init__.pyc
./lib/python2.7/site-packages/alembic/autogenerate/__init__.pyc
./li...
Difference between os.getenv and os.environ.get
...
One difference observed (Python27):
os.environ raises an exception if the environmental variable does not exist.
os.getenv does not raise an exception, but returns None
shar...
Difference between BeautifulSoup and Scrapy crawler?
...ed, pywin32, pyOpenSSL ete..). (Sorry for this silly question, i am new to python)
– Nishant Bhakta
Oct 30 '13 at 16:00
...
How does the @property decorator work in Python?
...> prop.__delete__(Foo())
Delete!
The Descriptor Howto includes a pure Python sample implementation of the property() type:
class Property:
"Emulate PyProperty_Type() in Objects/descrobject.c"
def __init__(self, fget=None, fset=None, fdel=None, doc=None):
self.fget = fget
...
python plot normal distribution
Given a mean and a variance is there a simple function call which will plot a normal distribution?
8 Answers
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How to remove specific elements in a numpy array
...turns a new array since array scalars are immutable, similar to strings in Python, so each time a change is made to it, a new object is created. I.e., to quote the delete() docs:
"A copy of arr with the elements specified by obj removed. Note that
delete does not occur in-place..."
If the co...
Python decorators in classes
...set_name(self, new_name):
self.name = new_name
Output (tested on Python 2.7.10):
>>> a = Thing('A')
>>> a.name
'A'
>>> a.set_name('B')
self.name = A
running function set_name()
self.name = B
>>> a.name
'B'
The example above is silly, but it works.
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How to check if a file is a valid image file?
...
I have just found the builtin imghdr module. From python documentation:
The imghdr module determines the type
of image contained in a file or byte
stream.
This is how it works:
>>> import imghdr
>>> imghdr.what('/tmp/bass')
'gif'
Using a module...