# Can the pythn code still work to download bitstream if the Jupyter is turned off? **URL:** \ **Category:** Support\ **Created:** [December 22, 2020, 10:46am UTC](https://discuss.pynq.io/t/can-the-pythn-code-still-work-to-download-bitstream-if-the-jupyter-is-turned-off/2172 "2020-12-22T10:46:38Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![NS\_Huang](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/ns_huang/32/151_2.png) [@NS\_Huang](https://discuss.pynq.io/u/NS_Huang)\ **Post date:** [December 22, 2020, 10:46am UTC](https://discuss.pynq.io/t/can-the-pythn-code-still-work-to-download-bitstream-if-the-jupyter-is-turned-off/2172/1 "2020-12-22T10:46:38Z")
Hi, dear PYNQ developers, If we turn off the Jupyter to offload the CPU on ZCU-104, can our Python code still work as well which loads the FPGA bitstream image and perform register configuration of the hardware accelerator on the ZCU-104? It is assumed that we use command mode to execute the Pyhon code on PYNQ ZCU-104. xilinx@pynq\_sdu:~ $ ps aux | grep jupyter xilinx 4283 0.0 0.0 5668 668 pts/3 S+ 10:31 0:00 grep --color=auto jupyter Tue 22. Dec 10:31:34 AM UTC 2020 ✔ BTW, is it related to the following problem? xilinx@pynq\_sdu:~/pynq/prj\_tst/int\_add $ sudo python3.6 int\_add.py [sudo] password for xilinx: /usr/local/lib/python3.6/dist-packages/pynq/overlay.py:299: UserWarning: Users will not get PARAMETERS / REGISTERS information through TCL files. HWH file is recommended. warnings.warn(message, UserWarning) Traceback (most recent call last): File “int\_add.py”, line 4, in ol = Overlay(“/home/xilinx/pynq/overlays/int\_add/int\_add.bit”) File “/usr/local/lib/python3.6/dist-packages/pynq/overlay.py”, line 315, in **init** self.download() File “/usr/local/lib/python3.6/dist-packages/pynq/overlay.py”, line 379, in download super().download() File “/usr/local/lib/python3.6/dist-packages/pynq/pl.py”, line 1938, in download PL.shutdown() File “/usr/local/lib/python3.6/dist-packages/pynq/pl.py”, line 1458, in shutdown ip = cls.ip\_dict File “/usr/local/lib/python3.6/dist-packages/pynq/pl.py”, line 1297, in ip\_dict cls.client\_request() File “/usr/local/lib/python3.6/dist-packages/pynq/pl.py”, line 1416, in client\_request cls.\_remote = Client(address, family=‘AF\_UNIX’, authkey=key) File “/usr/lib/python3.6/multiprocessing/connection.py”, line 487, in Client c = SocketClient(address) File “/usr/lib/python3.6/multiprocessing/connection.py”, line 614, in SocketClient s.connect(address) ConnectionRefusedError: [Errno 111] Connection refused Tue 22. Dec 09:36:53 AM UTC 2020 ✘ ❬1❭ Thank you very much All the best, ---
**Author:** ![cathalmccabe](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/cathalmccabe/32/3348_2.png) [@cathalmccabe](https://discuss.pynq.io/u/cathalmccabe)\ **Post date:** [December 22, 2020, 11:14am UTC](https://discuss.pynq.io/t/can-the-pythn-code-still-work-to-download-bitstream-if-the-jupyter-is-turned-off/2172/2 "2020-12-22T11:14:28Z")
**Yes** you can run your Python code with PYNQ without Jupyter - from the command line, or from a script etc. Cathal ---
**Author:** ![NS\_Huang](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/ns_huang/32/151_2.png) [@NS\_Huang](https://discuss.pynq.io/u/NS_Huang)\ **Post date:** [December 22, 2020, 11:27am UTC](https://discuss.pynq.io/t/can-the-pythn-code-still-work-to-download-bitstream-if-the-jupyter-is-turned-off/2172/3 "2020-12-22T11:27:33Z")
Thank you very much for the swift reply. ---
**Author:** ![cathalmccabe](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/cathalmccabe/32/3348_2.png) [@cathalmccabe](https://discuss.pynq.io/u/cathalmccabe)\ **Post date:** [March 15, 2021, 7:22am UTC](https://discuss.pynq.io/t/can-the-pythn-code-still-work-to-download-bitstream-if-the-jupyter-is-turned-off/2172/4 "2021-03-15T07:22:28Z")
4 posts were split to a new topic: [How to use PYNQ without Jupyter from the command line](https://discuss.pynq.io/t/how-to-use-pynq-without-jupyter-from-the-command-line/2426)