[Errno 2] No such file or directory: 'examplenov1500spring2017112403' error when generating bulk traj about pysplit HOT 7 CLOSED

I am having the same problem. I have code that I had been using to create bulk trajectories for quite some time, very similar to the the code provided in the examples on this site. When I ran the code yesterday, this error occurred. The error still occurred after pysplit was uninstalled and reinstalled. I am running the code in a Jupyter Notebook.

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Hi,

I worked with pysplit for a small research project a while ago. I used generate.bulktraj to create 50k trajectories without any issue. Although I am not familiar with debugging, you can find my code at https://github.com/zhx215/Patagonia_HYSPLIT/blob/master/Trajectory%20generation%20and%20preparation.ipynb

I run code on Windows PC so directory format will be different. Hope it could help.

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zhx215, I tried running your code (with different variables) and got the same error as before.

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Not sure if this matters but I have noticed that the filename associated with the error is 'examplenov1500spring2017112403' which is odd because I believe the season should be fall?

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generate_bulktraj() looks for the current working directory ('/Users/petergombert'), makes the output directory if it doesn't already exist ('/Users/petergombert/traj'), then changes the cwd to the hysplit4 working directory ('/Users/petergombert/hysplit4/working'). From within the hysplit working directory it calls HYSPLIT to make the trajectory, then tries to move it to the output directory.

What I think is happening here: because a relative path is provided for the output directory, shutil.move() is trying to send the file to '/Users/petergombert/hysplit4/working/traj/trajname' instead of '/Users/petergombert/traj/trajname'. Try trajectory generation again using an absolute path for your output directory and let us know if that works, and I will update the documentation for this function to indicate that absolute paths should be used.

The filename indicates 'spring' for November because -63.79 is a southern hemisphere latitude.

Hope this helps!

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That worked, thanks!

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I'm actually running into the same error again when running the below code. I had already run roughly 85,000 trajectories on the code and then today it stopped working. I have uninstalled and reinstalled the code on my python 3.7 environment.

Code:

import pysplit as py

hysplit_working = '/Users/petergombert/hysplit4/working'
output_dir = '/Users/petergombert/trajectories'
meteo_dir = '/Volumes/u1113223/Documents/mf'

lat = -62
lon = 137.5
time = 23
year = 2018
month = 1
runtime = -120
altitude = 1000
name = 'test'

py.generate_bulktraj(name, hysplit_working, output_dir, meteo_dir, [year], [month], [time], [altitude], (lat,lon), runtime,
monthslice = slice(28, 29, 1),
get_reverse=False,
get_clipped=False, hysplit='/Users/petergombert/hysplit4/exec/hyts_std')

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