python Programming Glossary: struct.unpack

How do you get the next value in the floating-point sequence?

http://stackoverflow.com/questions/10420848/how-do-you-get-the-next-value-in-the-floating-point-sequence

0.0 both map to the smallest ve float. if x 0.0 x 0.0 n struct.unpack ' q' struct.pack ' d' x 0 if n 0 n 1 else n 1 return struct.unpack.. ' q' struct.pack ' d' x 0 if n 0 n 1 else n 1 return struct.unpack ' d' struct.pack ' q' n 0 The implementations of nextDown and..

reading integers from binary file in python

http://stackoverflow.com/questions/1163459/reading-integers-from-binary-file-in-python

docs.python.org library struct.html . import struct print struct.unpack 'i' fin.read 4 Note that unpack always returns a tuple so struct.unpack.. 'i' fin.read 4 Note that unpack always returns a tuple so struct.unpack 'i' fin.read 4 0 gives the integer value that you are after...

Python memory usage of numpy arrays

http://stackoverflow.com/questions/11784329/python-memory-usage-of-numpy-arrays

f open 'Albedo_map.assoc' 'rb' getsizeof f 144 albedo struct.unpack ' df' 7200 3600 f.read 7200 3600 4 getsizeof albedo 207360056..

How to loop until EOF in Python?

http://stackoverflow.com/questions/1752107/how-to-loop-until-eof-in-python

un Pythonic len_name data.read 4 while len_name len_name struct.unpack I len_name 0 names.append data.read len_name len_name data.read..

how to extract frequency associated with fft values in python

http://stackoverflow.com/questions/3694918/how-to-extract-frequency-associated-with-fft-values-in-python

'r' data wav_file.readframes data_size wav_file.close data struct.unpack ' n h'.format n data_size data data np.array data w np.fft.fft..

Detect tap with pyaudio from live mic

http://stackoverflow.com/questions/4160175/detect-tap-with-pyaudio-from-live-mic

in the string. count len block 2 format dh count shorts struct.unpack format block # iterate over the block. sum_squares 0.0 for sample..

Get hard disk serial number using Python on Linux

http://stackoverflow.com/questions/4193514/get-hard-disk-serial-number-using-python-on-linux

fcntl.ioctl fd HDIO_GET_IDENTITY sizeof_hd_driveid fields struct.unpack hd_driveid_format_str buf serial_no fields 10 .strip model fields..

convert a string of bytes into an int (python)

http://stackoverflow.com/questions/444591/convert-a-string-of-bytes-into-an-int-python

Greg's method is faster from timeit import Timer Timer 'struct.unpack L y xcc xa6 xbb 0 ' 'import struct' .timeit 0.36242198944091797.. isn't necessarily cheap take a look Timer import struct nstruct.unpack L y xcc xa6 xbb 0 .timeit 0.98822188377380371 Including the.. when I force it to reload every time Timer reload struct nstruct.unpack L y xcc xa6 xbb 0 'import struct' .timeit 68.474128007888794..

Get mouse deltas using Python! (in Linux)

http://stackoverflow.com/questions/4855823/get-mouse-deltas-using-python-in-linux

button 0x1 bMiddle button 0x4 0 bRight button 0x2 0 x y struct.unpack bb buf 1 print L d M d R d x d y d n bLeft bMiddle bRight x..

How to get console window width in python

http://stackoverflow.com/questions/566746/how-to-get-console-window-width-in-python

def ioctl_GWINSZ fd try import fcntl termios struct os cr struct.unpack 'hh' fcntl.ioctl fd termios.TIOCGWINSZ '1234' except return..

auto-repeat flag in a pack format string

http://stackoverflow.com/questions/7867714/auto-repeat-flag-in-a-pack-format-string

like this in python Of course I can do str abc print struct.unpack b len str str but I'm wondering if there is a better way. python.. this question There is no such facility built into struct.unpack but it is possible to define such a function import struct def.. such a function import struct def unpack fmt astr Return struct.unpack fmt astr with the optional single in fmt replaced with the appropriate..

How can I check if an ip is in a network in python

http://stackoverflow.com/questions/819355/how-can-i-check-if-an-ip-is-in-a-network-in-python

convert decimal dotted quad string to long integer return struct.unpack 'L' socket.inet_aton ip 0 def networkMask ip bits Convert a.. addressInNetwork ip net Is an address in a network ipaddr struct.unpack 'L' socket.inet_aton ip 0 netaddr bits net.split ' ' netmask.. socket.inet_aton ip 0 netaddr bits net.split ' ' netmask struct.unpack 'L' socket.inet_aton netaddr 0 2L int bits 1 1 return ipaddr..