NumPy binary files (NPY, NPZ)
load(file[, mmap_mode, allow_pickle, …]) |
Load arrays or pickled objects from .npy, .npz or pickled files. |
save(file, arr[, allow_pickle, fix_imports]) |
Save an array to a binary file in NumPy .npy format. |
savez(file, \*args, \*\*kwds) |
Save several arrays into a single file in uncompressed .npz format. |
savez_compressed(file, \*args, \*\*kwds) |
Save several arrays into a single file in compressed .npz format. |
The format of these binary file types is documented in numpy.lib.format
Text files
loadtxt(fname[, dtype, comments, delimiter, …]) |
Load data from a text file. |
savetxt(fname, X[, fmt, delimiter, newline, …]) |
Save an array to a text file. |
genfromtxt(fname[, dtype, comments, …]) |
Load data from a text file, with missing values handled as specified. |
fromregex(file, regexp, dtype[, encoding]) |
Construct an array from a text file, using regular expression parsing. |
fromstring(string[, dtype, count, sep]) |
A new 1-D array initialized from text data in a string. |
ndarray.tofile(fid[, sep, format]) |
Write array to a file as text or binary (default). |
ndarray.tolist() |
Return the array as an a.ndim-levels deep nested list of Python scalars. |
Raw binary files
fromfile(file[, dtype, count, sep, offset]) |
Construct an array from data in a text or binary file. |
ndarray.tofile(fid[, sep, format]) |
Write array to a file as text or binary (default). |
array2string(a[, max_line_width, precision, …]) |
Return a string representation of an array. |
array_repr(arr[, max_line_width, precision, …]) |
Return the string representation of an array. |
array_str(a[, max_line_width, precision, …]) |
Return a string representation of the data in an array. |
format_float_positional(x[, precision, …]) |
Format a floating-point scalar as a decimal string in positional notation. |
format_float_scientific(x[, precision, …]) |
Format a floating-point scalar as a decimal string in scientific notation. |
Memory mapping files
memmap |
Create a memory-map to an array stored in a binary file on disk. |
Text formatting options
Base-n representations
binary_repr(num[, width]) |
Return the binary representation of the input number as a string. |
base_repr(number[, base, padding]) |
Return a string representation of a number in the given base system. |
Data sources
DataSource([destpath]) |
A generic data source file (file, http, ftp, …). |