Installation and Quick Start

npTDMS is available from the Python Package Index, so the easiest way to install it is by running (as root):

pip install npTDMS

Or you can install npTDMS as a non-root user inside your home directory:

pip install --user npTDMS

Alternatively, after downloading the source code you can extract it and change into the new directory, then run:

python install

Typical usage when reading a TDMS file might look like:

from nptdms import TdmsFile

tdms_file = TdmsFile("path_to_file.tdms")
channel = tdms_file.object('Group', 'Channel1')
data =
# do stuff with data

And to write a TDMS file:

from nptdms import TdmsWriter, ChannelObject
import numpy

with TdmsWriter("path_to_file.tdms") as tdms_writer:
    data_array = numpy.linspace(0, 1, 10)
    channel = ChannelObject('Group', 'Channel1', data_array)