Method Extend

python/pyarrow/src/arrow/python/python_to_arrow.cc:557–565

Iterate over the input values and defer the conversion to the Append method

 public:
  // Iterate over the input values and defer the conversion to the Append method
  Status Extend(PyObject* values, int64_t size, int64_t offset = 0) override {
    ARROW_DCHECK_GE(size, offset);
    /// Ensure we've allocated enough space
    RETURN_NOT_OK(this->Reserve(size - offset));
    // Iterate over the items adding each one
    return internal::VisitSequence(
        values, offset,
        [this](PyObject* item, bool* /* unused */) { return this->Append(item); });
  }

  // Convert and append a sequence of values masked with a numpy array
  Status ExtendMasked(PyObject* values, PyObject* mask, int64_t size,