Uninitialized variables in CoreHdfsFs.open_file

[simleo]

from pydoop.hdfs.core import init
hdfs = init()
fs = hdfs.CoreHdfsFs("default", 0)
f = fs.open_file("/tmp/foo", "w")

Leads to org.apache.hadoop.ipc.RemoteExceptions like:

Requested replication factor of -2365 is less than the required minimum of 1

or:

Specified block size is less than configured minimum value (dfs.namenode.fs-limits.min-block-size): 32723 < 1048576

For some reason, Python 2 seems to be unaffected by this.