Merge pull request #597 from JohanMabille/debugger

Implementation of the debugger

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
  fail-fast: false
  matrix:
  os: [ubuntu, macos, windows]
- python-version: [ '3.6', '3.7', '3.8', '3.9', 'pypy3' ]
+ python-version: [ '3.7', '3.8', '3.9' ]
  exclude:
  - os: windows
  python-version: pypy3

ipykernel/compiler.py

@@ -0,0 +1,64 @@
+from IPython.core.compilerop import CachingCompiler
+import tempfile
+import os
+
+def murmur2_x86(data, seed):
+ m = 0x5bd1e995
+ length = len(data)
+ h = seed ^ length
+ rounded_end = (length & 0xfffffffc)
+ for i in range(0, rounded_end, 4):
+ k = (ord(data[i]) & 0xff) | ((ord(data[i + 1]) & 0xff) << 8) | \
+ ((ord(data[i + 2]) & 0xff) << 16) | (ord(data[i + 3]) << 24)
+ k = (k * m) & 0xffffffff
+ k ^= k >> 24
+ k = (k * m) & 0xffffffff
+
+ h = (h * m) & 0xffffffff
+ h ^= k
+
+ val = length & 0x03
+ k = 0
+ if val == 3:
+ k = (ord(data[rounded_end + 2]) & 0xff) << 16
+ if val in [2, 3]:
+ k |= (ord(data[rounded_end + 1]) & 0xff) << 8
+ if val in [1, 2, 3]:
+ k |= ord(data[rounded_end]) & 0xff
+ h ^= k
+ h = (h * m) & 0xffffffff
+
+ h ^= h >> 13
+ h = (h * m) & 0xffffffff
+ h ^= h >> 15
+
+ return h
+
+def get_tmp_directory():
+ tmp_dir = tempfile.gettempdir()
+ pid = os.getpid()
+ return tmp_dir + '/ipykernel_' + str(pid)
+
+def get_tmp_hash_seed():
+ hash_seed = 0xc70f6907
+ return hash_seed
+
+def get_file_name(code):
+ name = murmur2_x86(code, get_tmp_hash_seed())
+ return get_tmp_directory() + '/' + str(name) + '.py'
+
+class XCachingCompiler(CachingCompiler):
+
+ def __init__(self, *args, **kwargs):
+ super(XCachingCompiler, self).__init__(*args, **kwargs)
+ self.filename_mapper = None
+ self.log = None
+
+ def get_code_name(self, raw_code, code, number):
+ filename = get_file_name(raw_code)
+
+ if self.filename_mapper is not None:
+ self.filename_mapper(filename, number)
+
+ return filename
+

ipykernel/control.py

@@ -12,6 +12,8 @@ class ControlThread(Thread):
  def __init__(self, **kwargs):
  Thread.__init__(self, **kwargs)
  self.io_loop = IOLoop(make_current=False)
+ self.pydev_do_not_trace = True
+ self.is_pydev_daemon_thread = True
 
  def run(self): 
  self.io_loop.make_current()