Skip to content


Subversion checkout URL

You can clone with
Download ZIP


%Rpush: Look for variables in the local scope first. #2731

merged 2 commits into from

3 participants


This is intended as a cleaned up version of #2698 & #2552, which partially addresses the issue in #2550.

The issue had two components:
1. The %Rpush line magic did not look for variables in the local scope.
2. The %Rpush line magic expected variable names to be separated with spaces.

This pull request addresses only the first of these two issues. I feel that the issues are sufficiently different to deserve separate consideration (and separate pull requests). In particular, %Rpull currently requires variable names to be separated by spaces as well and I think we should ensure that the semantics for %Rpush and %Rpull remain identical.

I'm going to close #2698 and link to this issue.


Test results for commit 5e268bb merged into master (ca39815)
Platform: linux2

  • python2.7: OK (libraries not available: azure)
  • python3.2: OK (libraries not available: azure jinja2 oct2py pymongo rpy2 wx wx.aui)

Not available for testing: python2.6


Looks good to me.

@bfroehle bfroehle merged commit 399d860 into ipython:master

1 check passed

Details default The Travis build passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Commits on Jan 2, 2013
  1. @rmcgibbo @bfroehle

    Fix issue #2550

    rmcgibbo authored bfroehle committed
  2. @rmcgibbo @bfroehle

    added tests for new feature

    rmcgibbo authored bfroehle committed
This page is out of date. Refresh to see the latest.
11 IPython/extensions/
@@ -178,8 +178,9 @@ def flush(self):
return value
+ @needs_local_scope
- def Rpush(self, line):
+ def Rpush(self, line, local_ns=None):
A line-level magic for R that pushes
variables from python to rpy2. The line should be made up
@@ -199,10 +200,16 @@ def Rpush(self, line):
Out[11]: array([ 6.23333333])
+ if local_ns is None:
+ local_ns = {}
inputs = line.split(' ')
for input in inputs:
- self.r.assign(input, self.pyconverter([input]))
+ try:
+ val = local_ns[input]
+ except KeyError:
+ val =[input]
+ self.r.assign(input, self.pyconverter(val))
14 IPython/extensions/tests/
@@ -14,6 +14,20 @@ def test_push():
np.testing.assert_almost_equal(np.asarray(rm.r('X')), ip.user_ns['X'])
np.testing.assert_almost_equal(np.asarray(rm.r('Y')), ip.user_ns['Y'])
+def test_push_localscope():
+ """Test that Rpush looks for variables in the local scope first."""
+ ip.run_cell('''
+def rmagic_addone(u):
+ %Rpush u
+ %R result = u+1
+ %Rpull result
+ return result[0]
+u = 0
+result = rmagic_addone(12344)
+ ''')
+ result = ip.user_ns['result']
+ np.testing.assert_equal(result, 12345)
def test_pull():
rm = rmagic.RMagics(ip)
Something went wrong with that request. Please try again.