The main purpose of the `__name__ == "__main__"` is to have some code that is executed when your file is called with:

<div class="termy">

```console
$ python myapp.py
```

</div>

but is not called when another file imports it, like in:

```Python
from myapp import app
```

#### More details { #more-details }

Let's say your file is named `myapp.py`.

If you run it with:

<div class="termy">

func TestNewObjectLayer(t *testing.T) {
	ctx, cancel := context.WithCancel(t.Context())
	defer cancel()
	// Tests for ErasureSD object layer.
	nDisks := 1
	disks, err := getRandomDisks(nDisks)
	if err != nil {
		t.Fatal("Failed to create drives for the backend")
	}
	defer removeRoots(disks)

	obj, err := newObjectLayer(ctx, mustGetPoolEndpoints(0, disks...))
	if err != nil {
		t.Fatal("Unexpected object layer initialization error", err)
	}

export MC_HOST_myminio1="http://minio123:minio123@localhost:9000/"

mc cp /etc/issue myminio1/test-bucket
ret=$?
if [ $ret -ne 0 ]; then
	echo "BUG: PutObject to bucket: test-bucket should succeed. Failed"
	exit 1
fi

mc cp /etc/issue myminio1/multi-key-poc | grep -q "Insufficient permissions to access this path"
ret=$?
if [ $ret -eq 0 ]; then

}

# createSvcacct ($user)
createSvcacct () {
  USER=$1
  FILENAME=$2
  #check accessKey_and_secretKey_tmp file
  if [[ ! -f $MINIO_ACCESSKEY_SECRETKEY_TMP ]];then
    echo "credentials file does not exist"
    return 1
  fi
  if [[ $(cat $MINIO_ACCESSKEY_SECRETKEY_TMP|wc -l) -ne 2 ]];then
    echo "credentials file is invalid"
    rm -f $MINIO_ACCESSKEY_SECRETKEY_TMP
    return 1
  fi

		t.Run(tc.str, func(t *testing.T) {
			jp := JSONPath{}
			err := p.ParseString(tc.str, &jp)
			// fmt.Println(jp)
			if err != nil {
				t.Fatalf("parse failed!: %d %v %s", i, err, tc)
			}

			// Read only the first json object from the file
			recs, err := getJSONStructs(b)
			if err != nil || len(recs) != 3 {
				t.Fatalf("%v or length was not 3", err)
			}

			for j, rec := range recs {

ECL0109=Could not create a parent directory of {0}
ECL0110=A parent directory of {0} is not a directory.
ECL0111={0} is not a file.
ECL0112=Could not store {0}
ECL0113=NoSuchPaddingException occurred, because {0}
ECL0114=NoSuchAlgorithmException occurred, because {0}
ECL0115=Failed to set accessible to the field: {0}
ECL0116=Failed to set accessible to the method: {0}

WCL0013=Protocol of URL({1}) corresponding to route package({0}) is unknown.

		DB.Migrator().DropTable(&CustomizeAccount{})

		if err := DB.AutoMigrate(&CustomizeUser{}); err != nil {
			t.Fatalf("failed to migrate, got error: %v", err)
		}
		if err := DB.AutoMigrate(&CustomizeAccount{}); err != nil {
			t.Fatalf("failed to migrate, got error: %v", err)
		}

		number := "number-has-one-associations"
		cusUser := CustomizeUser{
			Name: "update-has-one-associations",

            if (throwExceptionOnInit) {
                throw new IOException("Init failed");
            }
        }

        @Override
        public List<String> convert(String text, String field, String... langs) throws IOException {
            if (throwExceptionOnConvert) {
                throw new IOException("Convert failed");
            }
            return Collections.emptyList();
        }
    }

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *

	if [ "$groups" != "cn=project.c,ou=groups,ou=swengg,dc=min,dc=io" ]; then
		echo "Failed to verify groups: $groups"
		exit 1
	fi

	users=$(echo "$output" | jq -r '.result.policyMappings[] | select(.policy == "readwrite") | .users[]')
	if [ "$users" != "uid=dillon,ou=people,ou=swengg,dc=min,dc=io" ]; then
		echo "Failed to verify users: $users"
		exit 1
	fi

	mc admin service stop new-minio
}