def save(file, arr):
"""
Save an array to a binary file in NumPy format.
Parameters
----------
f : file or string
File or filename to which the data is saved. If the filename
does not already have a ``.npy`` extension, it is added.
x : array_like
Array data.
Examples
--------
>>> from tempfile import TemporaryFile
>>> outfile = TemporaryFile()
>>> x = np.arange(10)
>>> np.save(outfile, x)
>>> outfile.seek(0)
>>> np.load(outfile)
array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
"""
if isinstance(file, basestring):
if not file.endswith('.npy'):
file = file + '.npy'
fid = open(file, "wb")
else:
fid = file
arr = np.asanyarray(arr)
format.write_array(fid, arr)
def save(file, arr):
"""
Save an array to a binary file in NumPy format.
Parameters
----------
f : file or string
File or filename to which the data is saved. If the filename
does not already have a ``.npy`` extension, it is added.
x : array_like
Array data.
Examples
--------
>>> from tempfile import TemporaryFile
>>> outfile = TemporaryFile()
>>> x = np.arange(10)
>>> np.save(outfile, x)
>>> outfile.seek(0)
>>> np.load(outfile)
array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
"""
if isinstance(file, basestring):
if not file.endswith('.npy'):
file = file + '.npy'
fid = open(file, "wb")
else:
fid = file
arr = np.asanyarray(arr)
format.write_array(fid, arr)
def savez(file, *args, **kwds):
"""
Save several arrays into an .npz file format which is a zipped-archive
of arrays
If keyword arguments are given, then filenames are taken from the keywords.
If arguments are passed in with no keywords, then stored file names are
arr_0, arr_1, etc.
Parameters
----------
file : string
File name of .npz file.
args : Arguments
Function arguments.
kwds : Keyword arguments
Keywords.
"""
# Import is postponed to here since zipfile depends on gzip, an optional
# component of the so-called standard library.
import zipfile
if isinstance(file, basestring):
if not file.endswith('.npz'):
file = file + '.npz'
namedict = kwds
for i, val in enumerate(args):
key = 'arr_%d' % i
if key in namedict.keys():
raise ValueError, "Cannot use un-named variables and keyword %s" % key
namedict[key] = val
zip = zipfile.ZipFile(file, mode="w")
# Place to write temporary .npy files
# before storing them in the zip
import tempfile
direc = tempfile.gettempdir()
todel = []
for key, val in namedict.iteritems():
fname = key + '.npy'
filename = os.path.join(direc, fname)
todel.append(filename)
fid = open(filename,'wb')
format.write_array(fid, np.asanyarray(val))
fid.close()
zip.write(filename, arcname=fname)
zip.close()
for name in todel:
os.remove(name)
def savez(file, *args, **kwds):
"""
Save several arrays into an .npz file format which is a zipped-archive
of arrays
If keyword arguments are given, then filenames are taken from the keywords.
If arguments are passed in with no keywords, then stored file names are
arr_0, arr_1, etc.
Parameters
----------
file : string
File name of .npz file.
args : Arguments
Function arguments.
kwds : Keyword arguments
Keywords.
"""
# Import is postponed to here since zipfile depends on gzip, an optional
# component of the so-called standard library.
import zipfile
if isinstance(file, basestring):
if not file.endswith('.npz'):
file = file + '.npz'
namedict = kwds
for i, val in enumerate(args):
key = 'arr_%d' % i
if key in namedict.keys():
raise ValueError, "Cannot use un-named variables and keyword %s" % key
namedict[key] = val
zip = zipfile.ZipFile(file, mode="w")
# Place to write temporary .npy files
# before storing them in the zip
import tempfile
direc = tempfile.gettempdir()
todel = []
for key, val in namedict.iteritems():
fname = key + '.npy'
filename = os.path.join(direc, fname)
todel.append(filename)
fid = open(filename, 'wb')
format.write_array(fid, np.asanyarray(val))
fid.close()
zip.write(filename, arcname=fname)
zip.close()
for name in todel:
os.remove(name)
def save(file, arr):
"""
Save an array to a binary file in NumPy ``.npy`` format.
Parameters
----------
file : file or string
File or filename to which the data is saved. If the filename
does not already have a ``.npy`` extension, it is added.
arr : array_like
Array data to be saved.
See Also
--------
savez : Save several arrays into a .npz compressed archive
savetxt, load
Examples
--------
>>> from tempfile import TemporaryFile
>>> outfile = TemporaryFile()
>>> x = np.arange(10)
>>> np.save(outfile, x)
>>> outfile.seek(0) # only necessary in this example (with tempfile)
>>> np.load(outfile)
array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
"""
if isinstance(file, basestring):
if not file.endswith('.npy'):
file = file + '.npy'
fid = open(file, "wb")
else:
fid = file
arr = np.asanyarray(arr)
format.write_array(fid, arr)
def save(file, arr):
"""
Save an array to a binary file in NumPy ``.npy`` format.
Parameters
----------
file : file or string
File or filename to which the data is saved. If the filename
does not already have a ``.npy`` extension, it is added.
arr : array_like
Array data to be saved.
See Also
--------
savez : Save several arrays into a .npz compressed archive
savetxt, load
Examples
--------
>>> from tempfile import TemporaryFile
>>> outfile = TemporaryFile()
>>> x = np.arange(10)
>>> np.save(outfile, x)
>>> outfile.seek(0) # only necessary in this example (with tempfile)
>>> np.load(outfile)
array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
"""
if isinstance(file, basestring):
if not file.endswith('.npy'):
file = file + '.npy'
fid = open(file, "wb")
else:
fid = file
arr = np.asanyarray(arr)
format.write_array(fid, arr)
def save(file, arr):
"""Save an array to a binary file (a string or file-like object).
If the file is a string, then if it does not have the .npy extension,
it is appended and a file open.
Data is saved to the open file in NumPy-array format
Examples
--------
import numpy as np
...
np.save('myfile', a)
a = np.load('myfile.npy')
"""
if isinstance(file, str):
if not file.endswith('.npy'):
file = file + '.npy'
fid = open(file, "wb")
else:
fid = file
arr = np.asanyarray(arr)
format.write_array(fid, arr)
def save(file, arr):
"""Save an array to a binary file (a string or file-like object).
If the file is a string, then if it does not have the .npy extension,
it is appended and a file open.
Data is saved to the open file in NumPy-array format
Examples
--------
import numpy as np
...
np.save('myfile', a)
a = np.load('myfile.npy')
"""
if isinstance(file, str):
if not file.endswith('.npy'):
file = file + '.npy'
fid = open(file, "wb")
else:
fid = file
arr = np.asanyarray(arr)
format.write_array(fid, arr)
def savez(file, *args, **kwds):
"""
Save several arrays into a single, compressed file with extension ".npz"
If keyword arguments are given, the names for variables assigned to the
keywords are the keyword names (not the variable names in the caller).
If arguments are passed in with no keywords, the corresponding variable
names are arr_0, arr_1, etc.
Parameters
----------
file : Either the filename (string) or an open file (file-like object)
If file is a string, it names the output file. ".npz" will be appended
if it is not already there.
args : Arguments
Any function arguments other than the file name are variables to save.
Since it is not possible for Python to know their names outside the
savez function, they will be saved with names "arr_0", "arr_1", and so
on. These arguments can be any expression.
kwds : Keyword arguments
All keyword=value pairs cause the value to be saved with the name of
the keyword.
See Also
--------
save : Save a single array to a binary file in NumPy format
savetxt : Save an array to a file as plain text
Notes
-----
The .npz file format is a zipped archive of files named after the variables
they contain. Each file contains one variable in .npy format.
"""
# Import is postponed to here since zipfile depends on gzip, an optional
# component of the so-called standard library.
import zipfile
if isinstance(file, basestring):
if not file.endswith('.npz'):
file = file + '.npz'
namedict = kwds
for i, val in enumerate(args):
key = 'arr_%d' % i
if key in namedict.keys():
raise ValueError, "Cannot use un-named variables and keyword %s" % key
namedict[key] = val
zip = zipfile.ZipFile(file, mode="w")
# Place to write temporary .npy files
# before storing them in the zip
import tempfile
direc = tempfile.gettempdir()
todel = []
for key, val in namedict.iteritems():
fname = key + '.npy'
filename = os.path.join(direc, fname)
todel.append(filename)
fid = open(filename,'wb')
format.write_array(fid, np.asanyarray(val))
fid.close()
zip.write(filename, arcname=fname)
zip.close()
for name in todel:
os.remove(name)
def savez(file, *args, **kwds):
"""
Save several arrays into a single, compressed file with extension ".npz"
If keyword arguments are given, the names for variables assigned to the
keywords are the keyword names (not the variable names in the caller).
If arguments are passed in with no keywords, the corresponding variable
names are arr_0, arr_1, etc.
Parameters
----------
file : Either the filename (string) or an open file (file-like object)
If file is a string, it names the output file. ".npz" will be appended
if it is not already there.
args : Arguments
Any function arguments other than the file name are variables to save.
Since it is not possible for Python to know their names outside the
savez function, they will be saved with names "arr_0", "arr_1", and so
on. These arguments can be any expression.
kwds : Keyword arguments
All keyword=value pairs cause the value to be saved with the name of
the keyword.
See Also
--------
save : Save a single array to a binary file in NumPy format
savetxt : Save an array to a file as plain text
Notes
-----
The .npz file format is a zipped archive of files named after the variables
they contain. Each file contains one variable in .npy format.
"""
# Import is postponed to here since zipfile depends on gzip, an optional
# component of the so-called standard library.
import zipfile
if isinstance(file, basestring):
if not file.endswith('.npz'):
file = file + '.npz'
namedict = kwds
for i, val in enumerate(args):
key = 'arr_%d' % i
if key in namedict.keys():
raise ValueError, "Cannot use un-named variables and keyword %s" % key
namedict[key] = val
zip = zipfile_factory(file, mode="w")
# Place to write temporary .npy files
# before storing them in the zip
import tempfile
direc = tempfile.gettempdir()
todel = []
for key, val in namedict.iteritems():
fname = key + '.npy'
filename = os.path.join(direc, fname)
todel.append(filename)
fid = open(filename, 'wb')
format.write_array(fid, np.asanyarray(val))
fid.close()
zip.write(filename, arcname=fname)
zip.close()
for name in todel:
os.remove(name)
def savez(file, *args, **kwds):
"""
Save several arrays into a single, compressed file with extension ".npz"
If keyword arguments are given, the names for variables assigned to the
keywords are the keyword names (not the variable names in the caller).
If arguments are passed in with no keywords, the corresponding variable
names are arr_0, arr_1, etc.
Parameters
----------
file : Either the filename (string) or an open file (file-like object)
If file is a string, it names the output file. ".npz" will be appended
if it is not already there.
args : Arguments
Any function arguments other than the file name are variables to save.
Since it is not possible for Python to know their names outside the
savez function, they will be saved with names "arr_0", "arr_1", and so
on. These arguments can be any expression.
kwds : Keyword arguments
All keyword=value pairs cause the value to be saved with the name of
the keyword.
See Also
--------
save : Save a single array to a binary file in NumPy format
savetxt : Save an array to a file as plain text
Notes
-----
The .npz file format is a zipped archive of files named after the variables
they contain. Each file contains one variable in .npy format.
Examples
--------
>>> x = np.random.random((3, 3))
>>> y = np.zeros((3, 2))
>>> np.savez('data', x=x, y=y)
"""
# Import is postponed to here since zipfile depends on gzip, an optional
# component of the so-called standard library.
import zipfile
# Import deferred for startup time improvement
import tempfile
if isinstance(file, basestring):
if not file.endswith('.npz'):
file = file + '.npz'
namedict = kwds
for i, val in enumerate(args):
key = 'arr_%d' % i
if key in namedict.keys():
raise ValueError, "Cannot use un-named variables and keyword %s" % key
namedict[key] = val
zip = zipfile.ZipFile(file, mode="w")
# Stage arrays in a temporary file on disk, before writing to zip.
fd, tmpfile = tempfile.mkstemp(suffix='-numpy.npy')
os.close(fd)
try:
for key, val in namedict.iteritems():
fname = key + '.npy'
fid = open(tmpfile, 'wb')
try:
format.write_array(fid, np.asanyarray(val))
fid.close()
fid = None
zip.write(tmpfile, arcname=fname)
finally:
if fid:
fid.close()
finally:
os.remove(tmpfile)
zip.close()
def savez(file, *args, **kwds):
"""
Save several arrays into a single, compressed file with extension ".npz"
If keyword arguments are given, the names for variables assigned to the
keywords are the keyword names (not the variable names in the caller).
If arguments are passed in with no keywords, the corresponding variable
names are arr_0, arr_1, etc.
Parameters
----------
file : Either the filename (string) or an open file (file-like object)
If file is a string, it names the output file. ".npz" will be appended
if it is not already there.
args : Arguments
Any function arguments other than the file name are variables to save.
Since it is not possible for Python to know their names outside the
savez function, they will be saved with names "arr_0", "arr_1", and so
on. These arguments can be any expression.
kwds : Keyword arguments
All keyword=value pairs cause the value to be saved with the name of
the keyword.
See Also
--------
save : Save a single array to a binary file in NumPy format
savetxt : Save an array to a file as plain text
Notes
-----
The .npz file format is a zipped archive of files named after the variables
they contain. Each file contains one variable in .npy format.
Examples
--------
>>> x = np.random.random((3, 3))
>>> y = np.zeros((3, 2))
>>> np.savez('data', x=x, y=y)
"""
# Import is postponed to here since zipfile depends on gzip, an optional
# component of the so-called standard library.
import zipfile
# Import deferred for startup time improvement
import tempfile
if isinstance(file, basestring):
if not file.endswith('.npz'):
file = file + '.npz'
namedict = kwds
for i, val in enumerate(args):
key = 'arr_%d' % i
if key in namedict.keys():
raise ValueError, "Cannot use un-named variables and keyword %s" % key
namedict[key] = val
zip = zipfile.ZipFile(file, mode="w")
# Stage arrays in a temporary file on disk, before writing to zip.
fd, tmpfile = tempfile.mkstemp(suffix='-numpy.npy')
os.close(fd)
try:
for key, val in namedict.iteritems():
fname = key + '.npy'
fid = open(tmpfile, 'wb')
try:
format.write_array(fid, np.asanyarray(val))
fid.close()
fid = None
zip.write(tmpfile, arcname=fname)
finally:
if fid:
fid.close()
finally:
os.remove(tmpfile)
zip.close()
