Drop emulation of py3.5+ subprocess module for python 3.3

The Intra2net system now relies on python 3.7 ridding us of all
this extra complexity.

diff --git a/src/arnied_wrapper.py b/src/arnied_wrapper.py
index c2ba2cc..52438bc 100644 (file)
--- a/src/arnied_wrapper.py
+++ b/src/arnied_wrapper.py
@@ -60,7 +60,6 @@ log = logging.getLogger('pyi2ncommon.arnied_wrapper')
 from .cnfline import build_cnfvar
 from . import cnfvar
 from . import sysmisc
-from . import call_helpers
 
 
 
@@ -100,10 +99,7 @@ def run_cmd(cmd="", ignore_errors=False, vm=None, timeout=60):
                 raise subprocess.CalledProcessError(status, cmd, stderr=stderr)
         return subprocess.CompletedProcess(cmd, status, stdout=stdout, stderr=stderr)
     else:
-        if sys.version_info.major <= 3 and sys.version_info.minor < 5:
-            return call_helpers.subprocess_run(cmd, check=not ignore_errors, shell=True)
-        else:
-            return subprocess.run(cmd, check=not ignore_errors, shell=True, capture_output=True)
+        return subprocess.run(cmd, check=not ignore_errors, shell=True, capture_output=True)
 
 
 def verify_running(process='arnied', timeout=60, vm=None):

diff --git a/src/call_helpers.py b/src/call_helpers.py
index ca4e98f..4e945e1 100644 (file)
--- a/src/call_helpers.py
+++ b/src/call_helpers.py
@@ -81,60 +81,3 @@ def call_and_capture(command, stdin_data=None, split_lines=True,
             stderr_data.splitlines()
     else:
         return proc.returncode, stdout_data, stderr_data
-
-
-# Backports of py3.5+ subprocess module - nothing better than to
-# remove this and simply use 3.5+ python version on of course.
-
-class CompletedProcess(object):
-    """
-    Backported minimal class from the py3.5+ subprocess module.
-
-    All arguments are equivalent to the formal subprocess module.
-    """
-    def __init__(self, args, returncode, stdout=None, stderr=None):
-        self.args = args
-        self.returncode = returncode
-        self.stdout = stdout
-        self.stderr = stderr
-
-    def __repr__(self):
-        args = ['args={!r}'.format(self.args),
-                'returncode={!r}'.format(self.returncode)]
-        if self.stdout is not None:
-            args.append('stdout={!r}'.format(self.stdout))
-        if self.stderr is not None:
-            args.append('stderr={!r}'.format(self.stderr))
-        return "{}({})".format(type(self).__name__, ', '.join(args))
-
-
-class CalledProcessError(Exception):
-    """
-    Backported minimal class from the py3.5+ subprocess module.
-
-    All arguments are equivalent to the formal subprocess module.
-    """
-    def __init__(self, returncode, cmd, stderr=None):
-        self.returncode = returncode
-        self.cmd = cmd
-        self.stderr = stderr
-
-    def __str__(self):
-        return "Command '%s' returned non-zero exit status %d." % (
-                self.cmd, self.returncode)
-
-
-def subprocess_run(args, check=True, shell=True, universal_newlines=False):
-    """
-    Backported minimal function from the py3.5+ subprocess module.
-
-    All arguments are equivalent to the formal subprocess module.
-    """
-    command = args if isinstance(args, str) else " ".join(args)
-    status, stdout, stderr = \
-        call_and_capture(command, shell=shell, split_lines=False,
-                         universal_newlines=universal_newlines)
-    if check and status != 0:
-        raise CalledProcessError(status, args, stderr=stderr)
-    else:
-        return CompletedProcess(args, status, stdout=stdout, stderr=stderr)