issues: 287566823

This data as json

id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
287566823 MDU6SXNzdWUyODc1NjY4MjM= 1816 rasterio chunks argument causes loading from s3 to fail 1197350 closed 0     1 2018-01-10T20:28:40Z 2018-01-23T16:33:28Z 2018-01-23T16:33:28Z MEMBER      

Code Sample, a copy-pastable example if possible

```python

This works

url = 's3://landsat-pds/L8/139/045/LC81390452014295LGN00/LC81390452014295LGN00_B1.TIF' ds = xr.open_rasterio(url)

this doesn't

ds = xr.open_rasterio(url, chunks=512) ```

The error is ```

FileNotFoundError Traceback (most recent call last) <ipython-input-17-8b55d7e920b8> in <module>() 6 # https://aws.amazon.com/public-datasets/landsat/ 7 # 512x512 chunking ----> 8 ds = xr.open_rasterio(url, chunks=512) 9 ds

~/miniconda3/envs/geo_scipy/lib/python3.6/site-packages/xarray-0.10.0-py3.6.egg/xarray/backends/rasterio_.py in open_rasterio(filename, chunks, cache, lock) 172 from dask.base import tokenize 173 # augment the token with the file modification time --> 174 mtime = os.path.getmtime(filename) 175 token = tokenize(filename, mtime, chunks) 176 name_prefix = 'open_rasterio-%s' % token

~/miniconda3/envs/geo_scipy/lib/python3.6/genericpath.py in getmtime(filename) 53 def getmtime(filename): 54 """Return the last modification time of a file, reported by os.stat().""" ---> 55 return os.stat(filename).st_mtime 56 57

FileNotFoundError: [Errno 2] No such file or directory: 's3://landsat-pds/L8/139/045/LC81390452014295LGN00/LC81390452014295LGN00_B1.TIF' ```

Problem description

It is pretty clear that the current xarray code expects to receive a filename. (The name of the argument is filename.) But rasterio's open function accepts a much wider range of dataset identifiers. The tokenizing function should be updated to allow for this. Seems like it should be a pretty easy fix.

Output of xr.show_versions()

INSTALLED VERSIONS ------------------ commit: None python: 3.6.2.final.0 python-bits: 64 OS: Darwin OS-release: 16.7.0 machine: x86_64 processor: i386 byteorder: little LC_ALL: None LANG: en_US.UTF-8 LOCALE: en_US.UTF-8 xarray: 0.10.0 pandas: 0.20.3 numpy: 1.13.1 scipy: 0.19.1 netCDF4: 1.3.1 h5netcdf: 0.4.1 Nio: None bottleneck: 1.2.1 cyordereddict: None dask: 0.16.0 matplotlib: 2.1.0 cartopy: 0.15.1 seaborn: 0.8.1 setuptools: 36.3.0 pip: 9.0.1 conda: None pytest: 3.2.1 IPython: 6.1.0 sphinx: 1.6.5 
{
    "url": "https://api.github.com/repos/pydata/xarray/issues/1816/reactions",
    "total_count": 0,
    "+1": 0,
    "-1": 0,
    "laugh": 0,
    "hooray": 0,
    "confused": 0,
    "heart": 0,
    "rocket": 0,
    "eyes": 0
}
   completed 13221727 issue

Links from other tables