Merge pull request #19 from takluyver/latex-complete-fixes

Latex completion fixes

IPython/core/tests/test_completer.py

@@ -137,7 +137,7 b' def test_latex_completions():'
         text, matches = ip.complete(k)
         nt.assert_equal(len(matches),1)
         nt.assert_equal(text, k)
-        mt.assert_equal(matches[0], latex_symbols[k])
+        nt.assert_equal(matches[0], latex_symbols[k])
     # Test a more complex line
     text, matches = ip.complete(u'print(\\alpha')
     nt.assert_equals(text, u'\\alpha')

IPython/html/static/notebook/js/codemirror-ipython.js

@@ -16,7 +16,6 b" CodeMirror.requireMode('python',function(){"
         pythonConf.name = 'python';
         pythonConf.singleOperators = new RegExp("^[\\+\\-\\*/%&|\\^~<>!\\?]");
         if (pythonConf.version === 3) {
-            console.log('setting up for python 3');
             pythonConf.identifiers = new RegExp("^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*");
         } else if (pythonConf.version === 2) {
             pythonConf.identifiers = new RegExp("^[_A-Za-z][_A-Za-z0-9]*");

tools/gen_latex_symbols.py

@@ -46,13 +46,10 b' lines = [line_to_tuple(line) for line in lines]'
 print('Filtering out characters that are not valid Python 3 identifiers')
 
 def test_ident(i):
-    """Is the unicode string a valid Python 3 identifer."""
-    try:
-        exec('a%s = 10' % i, {}, {})
-    except SyntaxError:
-        return False
-    else:
-        return True
+    """Is the unicode string valid in a Python 3 identifer."""
+    # Some characters are not valid at the start of a name, but we still want to
+    # include them. So prefix with 'a', which is valid at the start.
+    return ('a' + i).isidentifier()
 
 assert test_ident("α")
 assert not test_ident('‴')