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How do I find the duplicates in a list and create another list with them?
...mpare each with each). For example:
a = [[1], [2], [3], [1], [5], [3]]
no_dupes = [x for n, x in enumerate(a) if x not in a[:n]]
print no_dupes # [[1], [2], [3], [5]]
dupes = [x for n, x in enumerate(a) if x in a[:n]]
print dupes # [[1], [3]]
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Append a NumPy array to a NumPy array
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Well, the error message says it all: NumPy arrays do not have an append() method. There's a free function numpy.append() however:
numpy.append(M, a)
This will create a new array instead of mutating M in place. Note that using num...
LEFT OUTER JOIN in LINQ
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I'm trying the same thing but getting an error on the join operator, which says "The type of one of the expressions in the join clause is incorrect."
– Badhon Jain
Jan 8 '14 at 8:52
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How to check for a valid Base64 encoded string
...ase 64 encoded other than just trying to convert it and see if there is an error? I have code code like this:
19 Answers
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Sequelize.js delete query?
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Shouldn't you use catch to catch the error instead of callback?
– Ahmed Ghrib
Feb 5 at 14:16
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How does zip(*[iter(s)]*n) work in Python?
...the wheel
– jamylak
Apr 16 '13 at 7:05
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Using Python String Formatting with Lists
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– Paused until further notice.
Dec 8 '13 at 16:05
This answer is potentially confusing, as it makes it look like the numerical va...
undefined reference to `__android_log_print'
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answered Dec 14 '17 at 0:05
DNaxDNax
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How to smooth a curve in the right way?
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I got the error Traceback (most recent call last): File "hp.py", line 79, in <module> ysm2 = savitzky_golay(y_data,51,3) File "hp.py", line 42, in savitzky_golay firstvals = y[0] - np.abs( y[1:half_window+1][::-1] - y...
How do I append one string to another in Python?
...ueId() + "'>" + message_text + "</div>", I find less readable and error-prone then "<div class='{classname}' id='{id}'>{message_text}</div>".format(classname=class_name, message_text=message_text, id=generateUniqueId())
– Winston Ewert
Mar ...