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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
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App Inventor 2 UrsPahoMqttClient 拓展 - ...
Replacing Pandas or Numpy Nan with a None to use with MysqlDB
... 3])
>>> y = np.where(np.isnan(x), None, x)
>>> print y
[1.0 None 3.0]
>>> print type(y[1])
<type 'NoneType'>
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A python class that acts like dict
...dited Oct 19 '12 at 15:21
Kim Gräsman
6,98611 gold badge2424 silver badges4040 bronze badges
answered Oct 25 '10 at 13:39
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Is there a standard sign function (signum, sgn) in C/C++?
...rom one argument and the absolute value from the other:
result = copysign(1.0, value) // double
result = copysignf(1.0, value) // float
result = copysignl(1.0, value) // long double
will give you a result of +/- 1.0, depending on the sign of value. Note that floating point zeroes are signed: (+0...
How to prevent custom views from losing state across screen orientation changes
...erclass), not public. No reason to expose them...
– XåpplI'-I0llwlg'I -
Jan 11 '13 at 10:27
7
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Max return value if empty query
...n an empty sequence results in an error.
– Raimund Krämer
Jan 29 '19 at 12:24
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How do I view all commits for a specific day?
...rking on a specific day and update my timesheet based on that, but it's a pain in the ass to type in the full date in ISO format so I just do it like this
git log --after=jun9 --before=jun10
and I add --author to only print my commits
git log --since=jun9 --until=jun10 --author=Robert
This pr...
How to enable Bootstrap tooltip on disabled button?
... click on the link (should not be possible).
– Olle Härstedt
Jul 27 '16 at 10:33
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CFBundleVersion in the Info.plist Upload Error
...mber, instead the bits between dots are treated as SEPARATE numbers. e.g. "1.02" is treated by Apple as "1.2". So, for Apple, 1.02 is GREATER THAN 1.1
Apple sometimes gets "confused" and seems to compare your uploaded-app to the version of a DIFFERENT app you've previously uploaded. It's happened to...
Regex for string not ending with given suffix
...p -vE "part[0-9]*$"
This results on my system:
pci-0000:00:0b.0-usb-0:1:1.0-scsi-0:0:0:0
If I only want the partitions I could do:
ls -1 /dev/disk/by-path/* | grep -P "\-usb\-" | grep -E "part[0-9]*$"
Where I get:
pci-0000:00:0b.0-usb-0:1:1.0-scsi-0:0:0:0-part1
pci-0000:00:0b.0-usb-0:1:1.0-...