### **4.1 Spark Pi**

Test the Spark installation by running the following compute intensive example, which calculates pi by “throwing darts” at a circle. The program generates points in the unit square ((0,0) to (1,1)) and counts how many points fall within the unit circle within the square. The result approximates pi.

Follow these steps to run the Spark Pi example:

- Login as user **‘spark’**.

Например, у вас есть файл `main.py`:

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip

Второй аргумент <a href=«https://docs.python.org/3.8/library/os.html#os.getenv» class=«external-link» target=«_blank»>`os.getenv()`</a> - это возвращаемое по умолчанию значение.

   * href="https://url.spec.whatwg.org/#syntax-url-path-segment">URL path segments</a>. The returned
   * escaper escapes all non-ASCII characters, even though <a
   * href="https://url.spec.whatwg.org/#url-code-points">many of these are accepted in modern
   * URLs</a>. (<a href="https://url.spec.whatwg.org/#path-state">If the escaper were to leave these
   * characters unescaped, they would be escaped by the consumer at parse time, anyway.</a>)

    }

    @DisplayName("Should parse different share types correctly")
    @ParameterizedTest
    @CsvSource({ "1, 1", // DISK
            "2, 2", // PIPE
            "3, 3", // PRINT
            "0, 0", // Unknown
            "255, -1" // Byte overflow to signed
    })
    void testDifferentShareTypes(int shareTypeValue, int expectedValue) throws SMBProtocolDecodingException {
        // Given

GOLANGCI_DIR = .bin/golangci/$(GOLANGCI_VERSION)
GOLANGCI = $(GOLANGCI_DIR)/golangci-lint

all: build

checks: ## check dependencies
	@echo "Checking dependencies"
	@(env bash $(PWD)/buildscripts/checkdeps.sh)

help: ## print this help
	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' Makefile | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-40s\033[0m %s\n", $$1, $$2}'

getdeps: ## fetch necessary dependencies
	@mkdir -p ${GOPATH}/bin

            // Test PRINT share type
            setPrivateField(response, "shareType", Smb2TreeConnectResponse.SMB2_SHARE_TYPE_PRINT);
            assertEquals(Smb2TreeConnectResponse.SMB2_SHARE_TYPE_PRINT, response.getShareType(), "Should handle PRINT share type");
        }

        @Test
        @DisplayName("Should handle share flags")

  id("com.vanniktech.maven.publish.base")
  id("binary-compatibility-validator")
}

val platform = System.getProperty("okhttp.platform", "jdk9")
val testJavaVersion = System.getProperty("test.java.version", "21").toInt()

val copyKotlinTemplates = tasks.register<Copy>("copyKotlinTemplates") {
  val kotlinTemplatesOutput = layout.buildDirectory.dir("generated/sources/kotlinTemplates")

  from("src/commonJvmAndroid/kotlinTemplates")

  private static final Escaper XML_ATTRIBUTE_ESCAPER;

  static {
    Escapers.Builder builder = Escapers.builder();
    // The char values \uFFFE and \uFFFF are explicitly not allowed in XML
    // (Unicode code points above \uFFFF are represented via surrogate pairs
    // which means they are treated as pairs of safe characters).
    builder.setSafeRange(Character.MIN_VALUE, '\uFFFD');

        .addEqualityGroup(wrapperFunction.apply(instance), wrapperFunction.apply(instance))
        .addEqualityGroup(wrapperFunction.apply(generator.newFreshProxy(interfaceType)))
        // TODO: add an overload to EqualsTester to print custom error message?
        .testEquals();
  }

  private static <T> void testToString(
      Class<T> interfaceType, Function<? super T, ? extends T> wrapperFunction) {

and then replaces each occurrence of a type C.xxx with _C_xxx.

If xxx is data, cgo arranges for C.xxx to refer to the C variable,
with the type translated as described above.  To do this, cgo must
introduce a Go variable that points at the C variable (the linker can
be told to initialize this pointer).  For example, if the gmp library
provided

	mpz_t zero;

then cgo would rewrite a reference to C.zero by introducing

	var _C_zero *C.mpz_t