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add blacklist for magic commands, since some break the kernel #17

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add blacklist for magic commands, since some break the kernel #17

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17 changes: 12 additions & 5 deletions src/scorep_jupyter/kernel.py
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,11 @@ class ScorepPythonKernel(IPythonKernel):
def __init__(self, **kwargs):
super().__init__(**kwargs)

self.whitelist_prefixes_cell = ['%%prun', '%%timeit', '%%capture', '%%python', '%%pypy']
self.whitelist_prefixes_line = ['%prun', '%time']

self.blacklist_prefixes = ['%lsmagic']

self.scorep_binding_args = []
self.scorep_env = {}

Expand Down Expand Up @@ -388,16 +393,18 @@ async def do_execute(self, code, silent, store_history=False, user_expressions=N
else:
# Some line/cell magics involve executing Python code, which must be parsed
# TODO: timeit, python, ...? do not save variables to globals()
whitelist_prefixes_cell = ['%%prun', '%%timeit', '%%capture', '%%python', '%%pypy']
whitelist_prefixes_line = ['%prun', '%time']

nomagic_code = '' # Code to be parsed for user variables
if not code.startswith(tuple(['%', '!'])): # No IPython magics and shell commands
nomagic_code = code
else:
if code.startswith(tuple(whitelist_prefixes_cell)): # Cell magic, remove first line
if code.startswith(tuple(self.blacklist_prefixes)):
self.cell_output(code + "is not supposed to be executed with this kernel due to compatibility "
"issues", 'stderr')
return self.standard_reply()

if code.startswith(tuple(self.whitelist_prefixes_cell)): # Cell magic, remove first line
nomagic_code = code.split("\n", 1)[1]
elif code.startswith(tuple(whitelist_prefixes_line)): # Line magic, remove first word
elif code.startswith(tuple(self.whitelist_prefixes_line)): # Line magic, remove first word
nomagic_code = code.split(" ", 1)[1]
if nomagic_code:
# Parsing for user variables might fail due to SyntaxError
Expand Down