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"""A Python kernel for Jupyter."""
from IPython.core.inputtransformer2 import TransformerManager
from metakernel import MetaKernel
import sys
__version__ = "0.19.1"
class MetaKernelPython(MetaKernel):
implementation = 'MetaKernel Python'
implementation_version = '1.0'
language = 'python'
language_version = '0.1'
banner = "MetaKernel Python - evaluates Python statements and expressions"
language_info = {
'mimetype': 'text/x-python',
'name': 'python',
# ------ If different from 'language':
# 'codemirror_mode': {
# "version": 2,
# "name": "ipython"
# }
# 'pygments_lexer': 'language',
# 'version' : "x.y.z",
'file_extension': '.py',
'help_links': MetaKernel.help_links,
}
kernel_json = {
"argv": [
sys.executable, "-m", "metakernel_python", "-f", "{connection_file}"],
"display_name": "MetaKernel Python",
"language": "python",
"name": "metakernel_python"
}
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.transformer_manager = TransformerManager()
def get_usage(self):
return ("This is MetaKernel Python. It implements a Python " +
"interpreter.")
def set_variable(self, name, value):
"""
Set a variable in the kernel language.
"""
python_magic = self.line_magics['python']
python_magic.env[name] = value
def get_variable(self, name):
"""
Get a variable from the kernel language.
"""
python_magic = self.line_magics['python']
return python_magic.env.get(name, None)
def do_execute_direct(self, code):
python_magic = self.line_magics['python']
return python_magic.eval(code.strip())
def get_completions(self, info):
python_magic = self.line_magics['python']
return python_magic.get_completions(info)
def get_kernel_help_on(self, info, level=0, none_on_fail=False):
python_magic = self.line_magics['python']
return python_magic.get_help_on(info, level, none_on_fail)
def do_is_complete(self, code):
status, indent_spaces = self.transformer_manager.check_complete(code)
r = {'status': status}
if status == 'incomplete':
r['indent'] = ' ' * indent_spaces
return r
if __name__ == '__main__':
MetaKernelPython.run_as_main()
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