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# Input and output

## NPZ files

`load`(file[, mmap_mode]) | Load a pickled, `.npy`, or `.npz` binary file.
`save`(file, arr) | Save an array to a binary file in NumPy `.npy` format.
`savez`(file, *args, **kwds) | Save several arrays into a single, archive file in `.npz` 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) | Construct an array from a text file, using regular expression parsing.
`fromstring`(string[, dtype, count, sep]) | Return a new 1-D array initialized from raw binary or text data in string.
`ndarray.tofile`(fid[, sep, format]) | Write array to a file as text or binary (default).
`ndarray.tolist`() | Return the array as a (possibly nested) list.

## String formatting

`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.

## Memory mapping files

`memmap` | Create a memory-map to an array stored in a binary file on disk.

## Text formatting options

`set_printoptions`([precision, threshold, ...]) | Set printing options.
`get_printoptions`() | Return the current print options.
`set_string_function`(f[, repr]) | Set a Python function to be used when pretty printing arrays.

## 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, ...).

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