diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 8c1f761..35141c7 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.8.6
+current_version = 0.9.0
 commit = True
 tag = False
 
diff --git a/.gitignore b/.gitignore
index 901668c..7b47fe6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,5 @@
 .cache
 /.pypirc
 /.tox/
+.dropbox
+Icon
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index 9843ea0..bb62e9c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ python:
 - '3.6'
 before_install: sudo apt-get install unzip
 before_script:
-  - export TFVER=0.9.5
+  - export TFVER=0.10.0
   - export TFURL=https://releases.hashicorp.com/terraform/
   - TFURL+=$TFVER
   - TFURL+="/terraform_"
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..18de51f
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,6 @@
+# Changelog
+## [0.9.0]
+### Fixed
+1. [#12] Output function doesn't accept parameter 'module'
+1. [#16] Handle empty space/special characters when passing string to command line options
+1. Tested with terraform 0.10.0 
\ No newline at end of file
diff --git a/python_terraform/__init__.py b/python_terraform/__init__.py
index 896d2e0..19ca603 100644
--- a/python_terraform/__init__.py
+++ b/python_terraform/__init__.py
@@ -35,7 +35,7 @@ class Terraform(object):
                  var_file=None,
                  terraform_bin_path=None,
                  is_env_vars_included=True):
-        """        
+        """
         :param working_dir: the folder of the working folder, if not given,
                             will be current working folder
         :param targets: list of target
@@ -49,7 +49,7 @@ class Terraform(object):
                 could be string or list, list stands for multiple -var-file option
         :param terraform_bin_path: binary path of terraform
         :type is_env_vars_included: bool
-        :param is_env_vars_included: included env variables when calling terraform cmd 
+        :param is_env_vars_included: included env variables when calling terraform cmd
         """
         self.is_env_vars_included = is_env_vars_included
         self.working_dir = working_dir
@@ -192,8 +192,7 @@ class Terraform(object):
             cmds += ['-{k}={v}'.format(k=k, v=v)]
 
         cmds += args
-        cmd = ' '.join(cmds)
-        return cmd
+        return cmds
 
     def cmd(self, cmd, *args, **kwargs):
         """
@@ -224,8 +223,8 @@ class Terraform(object):
             stderr = sys.stderr
             stdout = sys.stdout
 
-        cmd_string = self.generate_cmd_string(cmd, *args, **kwargs)
-        log.debug('command: {c}'.format(c=cmd_string))
+        cmds = self.generate_cmd_string(cmd, *args, **kwargs)
+        log.debug('command: {c}'.format(c=' '.join(cmds)))
 
         working_folder = self.working_dir if self.working_dir else None
 
@@ -233,7 +232,7 @@ class Terraform(object):
         if self.is_env_vars_included:
             environ_vars = os.environ.copy()
 
-        p = subprocess.Popen(cmd_string, stdout=stdout, stderr=stderr, shell=True,
+        p = subprocess.Popen(cmds, stdout=stdout, stderr=stderr,
                              cwd=working_folder, env=environ_vars)
         out, err = p.communicate()
         ret_code = p.returncode
@@ -250,13 +249,15 @@ class Terraform(object):
         else:
             return ret_code, None, None
 
-    def output(self, name):
+    def output(self, name, *args, **kwargs):
         """
         https://www.terraform.io/docs/commands/output.html
         :param name: name of output
         :return: output value
         """
-        ret, out, err = self.cmd('output', name, json=IsFlagged)
+
+        ret, out, err = self.cmd(
+            'output', name, json=IsFlagged, *args, **kwargs)
 
         log.debug('output raw string: {0}'.format(out))
         if ret != 0:
diff --git a/setup.py b/setup.py
index 988cc76..b4fb40e 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@ except IOError:
 
 setup(
     name=module_name,
-    version='0.8.6',
+    version='0.9.0',
     url='https://github.com/beelit94/python-terraform',
     license='MIT',
     author='Freddy Tan',
diff --git a/test/test_terraform.py b/test/test_terraform.py
index 0a2487d..84ae447 100644
--- a/test/test_terraform.py
+++ b/test/test_terraform.py
@@ -8,13 +8,13 @@ import os
 import logging
 import re
 import shutil
+import fnmatch
 
 logging.basicConfig(level=logging.DEBUG)
 root_logger = logging.getLogger()
-# ch = logging.StreamHandler(sys.stdout)
-# root_logger.addHandler(ch)
 current_path = os.path.dirname(os.path.realpath(__file__))
 
+FILE_PATH_WITH_SPACE_AND_SPACIAL_CHARS = "test 'test.out!"
 STRING_CASES = [
      [
          lambda x: x.generate_cmd_string('apply', 'the_folder',
@@ -30,20 +30,30 @@ STRING_CASES = [
  ]
 
 CMD_CASES = [
-    ['method', 'expected_output', 'expected_ret_code', 'expected_logs'],
+    ['method', 'expected_output', 'expected_ret_code', 'expected_logs', 'folder'],
     [
         [
             lambda x: x.cmd('plan', 'var_to_output', no_color=IsFlagged, var={'test_var': 'test'}) ,
             "doesn't need to do anything",
             0,
-            ''
+            '',
+            'var_to_output'
         ],
         # try import aws instance
         [
             lambda x: x.cmd('import', 'aws_instance.foo', 'i-abcd1234', no_color=IsFlagged),
             '',
             1,
-            'command: terraform import -no-color aws_instance.foo i-abcd1234'
+            'command: terraform import -no-color aws_instance.foo i-abcd1234',
+            ''
+        ],
+        # test with space and special character in file path
+        [
+            lambda x: x.cmd('plan', 'var_to_output', out=FILE_PATH_WITH_SPACE_AND_SPACIAL_CHARS),
+            '',
+            0,
+            '',
+            'var_to_output'
         ]
     ]
 ]
@@ -71,9 +81,10 @@ def string_logger(request):
 
     def td():
         root_logger.removeHandler(handler)
+        log_stream.close()
 
     request.addfinalizer(td)
-    return log_stream
+    return lambda: str(log_stream.getvalue())
 
 
 class TestTerraform(object):
@@ -83,12 +94,17 @@ class TestTerraform(object):
         """
 
         def purge(dir, pattern):
-            for f in os.listdir(dir):
-                if re.search(pattern, f):
-                    if os.path.isfile(f):
-                        os.remove(os.path.join(dir, f))
+            for root, dirnames, filenames in os.walk(dir):
+                for filename in fnmatch.filter(filenames, pattern):
+                    f = os.path.join(root, filename)
+                    os.remove(f)
+                for dirname in fnmatch.filter(dirnames, pattern):
+                    d = os.path.join(root, dirname)
+                    shutil.rmtree(d)
 
-        purge('.', '.tfstate')
+        purge('.', '*.tfstate')
+        purge('.', '*.terraform')
+        purge('.', FILE_PATH_WITH_SPACE_AND_SPACIAL_CHARS)
 
     @pytest.mark.parametrize([
                  "method", "expected"
@@ -102,10 +118,11 @@ class TestTerraform(object):
             assert s in result
 
     @pytest.mark.parametrize(*CMD_CASES)
-    def test_cmd(self, method, expected_output, expected_ret_code, expected_logs, string_logger):
+    def test_cmd(self, method, expected_output, expected_ret_code, expected_logs, string_logger, folder):
         tf = Terraform(working_dir=current_path)
+        tf.init(folder)
         ret, out, err = method(tf)
-        logs = str(string_logger.getvalue())
+        logs = string_logger()
         logs = logs.replace('\n', '')
         assert expected_output in out
         assert expected_ret_code == ret
@@ -123,6 +140,8 @@ class TestTerraform(object):
         ])
     def test_apply(self, folder, variables, var_files, expected_output, options):
         tf = Terraform(working_dir=current_path, variables=variables, var_file=var_files)
+        # after 0.10.0 we always need to init
+        tf.init(folder)
         ret, out, err = tf.apply(folder, **options)
         assert ret == 0
         assert expected_output in out.replace('\n', '').replace(' ', '')
@@ -160,6 +179,7 @@ class TestTerraform(object):
     )
     def test_override_default(self, folder, variables):
         tf = Terraform(working_dir=current_path, variables=variables)
+        tf.init(folder)
         ret, out, err = tf.apply(folder, var={'test_var': 'test2'},
                                  no_color=IsNotFlagged)
         out = out.replace('\n', '')
@@ -167,13 +187,28 @@ class TestTerraform(object):
         out = tf.output('test_output')
         assert 'test2' in out
 
-    def test_get_output(self):
+    @pytest.mark.parametrize(
+        ("param"),
+        [
+            ({}),
+            ({'module': 'test2'}),
+        ]
+    )
+    def test_output(self, param, string_logger):
         tf = Terraform(working_dir=current_path, variables={'test_var': 'test'})
+        tf.init('var_to_output')
         tf.apply('var_to_output')
-        assert tf.output('test_output') == 'test'
+        result = tf.output('test_output', **param)
+        regex = re.compile("terraform output (-module=test2 -json|-json -module=test2) test_output")
+        log_str = string_logger()
+        if param:
+            assert re.search(regex, log_str), log_str
+        else:
+            assert result == 'test'
 
     def test_destroy(self):
         tf = Terraform(working_dir=current_path, variables={'test_var': 'test'})
+        tf.init('var_to_output')
         ret, out, err = tf.destroy('var_to_output')
         assert ret == 0
         assert 'Destroy complete! Resources: 0 destroyed.' in out
@@ -197,6 +232,4 @@ class TestTerraform(object):
     def test_import(self, string_logger):
         tf = Terraform(working_dir=current_path)
         tf.import_cmd('aws_instance.foo', 'i-abc1234', no_color=IsFlagged)
-        logs = string_logger.getvalue()
-        print(logs)
-        assert 'command: terraform import -no-color aws_instance.foo i-abc1234' in logs
+        assert 'command: terraform import -no-color aws_instance.foo i-abc1234' in string_logger()