Python 3.3 tolerance

uncompyle6/scanner.py

@@ -1,4 +1,4 @@
-#  Copyright (c) 2016, 2018-2021 by Rocky Bernstein
+#  Copyright (c) 2016, 2018-2022 by Rocky Bernstein
 #  Copyright (c) 2005 by Dan Pascu <dan@windowmaker.org>
 #  Copyright (c) 2000-2002 by hartmut Goebel <h.goebel@crazy-compilers.com>
 #  Copyright (c) 1999 John Aycock
@@ -168,7 +168,7 @@ class Scanner(object):
                 opname="COLLECTION_START",
                 attr=collection_enum,
                 pattr=collection_type,
-                offset=f"{start_offset}_0",
+               offset="%s_0" % start_offset,
                 has_arg=True,
                 opc=self.opc,
                 has_extended_arg=False,
@@ -189,7 +189,7 @@ class Scanner(object):
             )
         new_tokens.append(
             Token(
-                opname=f"BUILD_{collection_type}",
+                opname="BUILD_%s" % collection_type,
                 attr=t.attr,
                 pattr=t.pattr,
                 offset=t.offset,

uncompyle6/scanners/scanner37.py

@@ -22,7 +22,6 @@ This sets up opcodes Python's 3.7 and calls a generalized
 scanner routine for Python 3.
 """
 
-from typing import Tuple
 from uncompyle6.scanners.scanner37base import Scanner37Base
 
 # bytecode verification, verify(), uses JUMP_OPs from here
@@ -44,7 +43,7 @@ class Scanner37(Scanner37Base):
 
     def ingest(
         self, co, classname=None, code_objects={}, show_asm=None
-    ) -> Tuple[list, dict]:
+    ):
         """
         Create "tokens" the bytecode of an Python code object. Largely these
         are the opcode name, but in some cases that has been modified to make parsing
@@ -78,7 +77,7 @@ class Scanner37(Scanner37Base):
                     else t.kind.split("_")[1]
                 )
                 new_tokens = self.bound_collection(
-                    tokens, new_tokens, t, i, f"CONST_{collection_type}"
+                    tokens, new_tokens, t, i, "CONST_%s" % collection_type
                 )
                 continue
 

uncompyle6/scanners/scanner37base.py

@@ -29,8 +29,6 @@ For example:
 Finally we save token information.
 """
 
-from typing import Any, Dict, List, Set
-
 from xdis import iscode, instruction_size, Instruction
 from xdis.bytecode import _get_const_info
 
@@ -534,17 +532,17 @@ class Scanner37Base(Scanner):
         self.structs = [{"type": "root", "start": 0, "end": n - 1}]
 
         # All loop entry points
-        self.loops: List[int] = []
+        self.loops = []
 
         # Map fixed jumps to their real destination
-        self.fixed_jumps: Dict[int, int] = {}
+        self.fixed_jumps = {}
         self.except_targets = {}
-        self.ignore_if: Set[int] = set()
+        self.ignore_if = set()
         self.build_statement_indices()
 
         # Containers filled by detect_control_flow()
-        self.not_continue: Set[int] = set()
-        self.return_end_ifs: Set[int] = set()
+        self.not_continue = set()
+        self.return_end_ifs = set()
         self.setup_loop_targets = {}  # target given setup_loop offset
         self.setup_loops = {}  # setup_loop offset given target
 
@@ -683,7 +681,7 @@ class Scanner37Base(Scanner):
         slist += [codelen] * (codelen - len(slist))
 
     def detect_control_flow(
-        self, offset: int, targets: Dict[Any, Any], inst_index: int
+        self, offset, targets, inst_index
     ):
         """
         Detect type of block structures and their boundaries to fix optimized jumps
@@ -695,9 +693,9 @@ class Scanner37Base(Scanner):
         op = inst.opcode
 
         # Detect parent structure
-        parent: Dict[str, Any] = self.structs[0]
-        start: int = parent["start"]
-        end: int = parent["end"]
+        parent = self.structs[0]
+        start = parent["start"]
+        end = parent["end"]
 
         # Pick inner-most parent for our offset
         for struct in self.structs:
@@ -941,5 +939,5 @@ if __name__ == "__main__":
         for t in tokens:
             print(t)
     else:
-        print(f"Need to be Python 3.7 to demo; I am version {version_tuple_to_str()}.")
+        print("Need to be Python 3.7 to demo; I am version %s." % version_tuple_to_str())
     pass

uncompyle6/semantics/n_actions.py

@@ -221,7 +221,7 @@ class NonterminalActions:
         else:
             # from trepan.api import debug; debug()
             raise TypeError(
-                f"Internal Error: n_const_list expects dict, list set, or set; got {lastnodetype}"
+                "Internal Error: n_const_list expects dict, list set, or set; got %s" % lastnodetype
             )
 
         self.indent_more(INDENT_PER_LEVEL)
@@ -240,7 +240,7 @@ class NonterminalActions:
                     else:
                         if sep != "":
                             sep += " "
-                self.write(f"{sep} {repr(keys[i])}: {value}")
+                self.write("%s %s: %s" % (sep, repr(keys[i]), value))
                 sep = ","
         else:
             for elem in flat_elems: