When running test-case gdb.dap/basic-dap.exp with a gdb without python
support, I run into:
...
builtin_spawn gdb -nw -nx -iex set height 0 -iex set width 0 \
-data-directory data-directory -iex set debug dap-log-file dap.log.1 -q \
-i=dap
>>> {"seq": 1, "type": "request", "command": "initialize"}
Interpreter `dap' unrecognized
ERROR: eof reading json header
...
Fix this by requiring python in the test-case.
Tested on x86_64-linux, both with a gdb without and with python.
# Basic DAP test.
+require allow_python_tests
+
load_lib dap-support.exp
standard_testfile