大约有 40,000 项符合查询结果（耗时：0.0411秒） [XML]
How can I implement a tree in Python?
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The question is tagged with Python3, there's no need to derive class Tree from object then
– cfi
Apr 26 '12 at 16:32
3
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Convert timedelta to total seconds
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datetime.timedelta.total_seconds(time2-time1) in Python3.6
– Russo
May 23 '18 at 16:05
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Getting a map() to return a list in Python 3.x
...ename to Getting map() to return a list in Python 3.* as it applies to all Python3 versions. Is there a way to do this? – meawoppl Jan 24 at 17:58
It is possible to do that, but it is a very bad idea. Just for fun, here's how you may (but should not) do it:
__global_map = map #keep reference t...
NameError: global name 'unicode' is not defined - in Python 3
... answer. There is no reason to leave python2 users behind or have breaking python3
– MrMesees
Sep 4 '18 at 22:47
add a comment
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python pandas remove duplicate columns
... Lovely solution but on April 26, 2017 I got /usr/local/lib/python3.5/dist-packages/ipykernel_launcher.py:17: DeprecationWarning: 'pandas.core.common.array_equivalent' is deprecated and is no longer public API
– George Fisher
Apr 26 '17 at 12:35
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How to download image using requests
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# python2.x, use this instead
# from StringIO import StringIO
# for python3.x,
from io import StringIO
r = requests.get('https://example.com/image.jpg')
i = Image.open(StringIO(r.content))
This much more reduced the number of function calls, thus speeded up my application.
Here is the code...
Converting from longitude\latitude to Cartesian coordinates
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In python3.x it can be done using :
# Converting lat/long to cartesian
import numpy as np
def get_cartesian(lat=None,lon=None):
lat, lon = np.deg2rad(lat), np.deg2rad(lon)
R = 6371 # radius of the earth
x = R * np...
Replace all non-alphanumeric characters in a string
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Try:
s = filter(str.isalnum, s)
in Python3:
s = ''.join(filter(str.isalnum, s))
Edit:
realized that the OP wants to replace non-chars with '*'. My answer does not fit
share
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UnicodeEncodeError: 'ascii' codec can't encode character u'\xa0' in position 20: ordinal not in rang
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How could this be done in python3 ? Would be happy to know.
– Kanerva Peter
Mar 7 '18 at 12:24
3
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Quick and easy file dialog in Python?
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On python3: tkinter.filedialog.askopenfilename()
– jfs
Mar 3 '14 at 20:37
10
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