大约有 2,100 项符合查询结果(耗时:0.0153秒) [XML]
Can't seem to discard changes in Git
...r me to get rid of the file mode changes.
– Thorkil Værge
Aug 5 at 11:09
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What are rvalues, lvalues, xvalues, glvalues, and prvalues?
...d MSVC, and they all show the same behavior.
– Kim Gräsman
Mar 9 '14 at 16:56
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how to unit test file upload in django
...e more than enough code to get on with your own use case
import tempfile, csv, os
class UploadPaperTest(TestCase):
def generate_file(self):
try:
myfile = open('test.csv', 'wb')
wr = csv.writer(myfile)
wr.writerow(('Paper ID','Paper Title', 'Authors'...
Is it possible to modify variable in python that is in outer, but not global, scope?
...ep 17 '19 at 19:29
Markus HirsimäkiMarkus Hirsimäki
1122 bronze badges
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How does variable assignment work in JavaScript?
...la.org/en/JavaScript/Reference/Global_Objects/…
– Lèse majesté
Jul 11 '12 at 22:56
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How to get the first column of a pandas DataFrame as a Series?
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This works great when you want to load a series from a csv file
x = pd.read_csv('x.csv', index_col=False, names=['x'],header=None).iloc[:,0]
print(type(x))
print(x.head(10))
<class 'pandas.core.series.Series'>
0 110.96
1 119.40
2 135.89
3 152.32
4 192.91
5...
Why does pycharm propose to change method to static
...out_self()
def is_not_used(self):
pass
Workaround #2 [Thanks @DavidPärsson]
# noinspection PyMethodMayBeStatic
def bar(self):
doing_something_without_self()
The application I had for this (the reason I could not use @staticmethod) was in making a table of handler functions for respond...
Converting string to numeric [duplicate]
... "NoData". What do expect/want as.numeric to do with these values?
In read.csv, try using the argument stringsAsFactors=FALSE
Are you sure it's sep="/t and not sep="\t"
Use the command head(pitchman) to check the first fews rows of your data
Also, it's very tricky to guess what your problem is when ...
How to save a list as numpy array in python?
...
Here is a more complete example:
import csv
import numpy as np
with open('filename','rb') as csvfile:
cdl = list( csv.reader(csvfile,delimiter='\t'))
print "Number of records = " + str(len(cdl))
#then later
npcdl = np.array(cdl)
Hope this helps!!
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Select Pandas rows based on list index
...a the skiprows parameter.
Example
pred = lambda x: x not in [1, 3]
pd.read_csv("data.csv", skiprows=pred, index_col=0, names=...)
This will now return a DataFrame from a file that skips all rows except 1 and 3.
Details
From the docs:
skiprows : list-like or integer or callable, default None
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I...
