We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Remove call_without_output from Shell.py L7
This line was used by the requirement classes, it isnt used anymore as they use sarge, so it should be removed.
difficulty/newcomer

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `coalib/misc/Shell.py`
Content:
```
1 from contextlib import contextmanager
2 import functools
3 import shlex
4 from subprocess import PIPE, Popen, call, DEVNULL
5 
6 
7 call_without_output = functools.partial(call, stdout=DEVNULL, stderr=DEVNULL)
8 """
9 Uses subprocess.call to execute a command, but suppresses the output and
10 the errors.
11 """
12 
13 
14 @contextmanager
15 def run_interactive_shell_command(command, **kwargs):
16     """
17     Runs a single command in shell and provides stdout, stderr and stdin
18     streams.
19 
20     This function creates a context manager that sets up the process (using
21     ``subprocess.Popen()``), returns to caller and waits for process to exit on
22     leaving.
23 
24     By default the process is opened in ``universal_newlines`` mode and creates
25     pipes for all streams (stdout, stderr and stdin) using ``subprocess.PIPE``
26     special value. These pipes are closed automatically, so if you want to get
27     the contents of the streams you should retrieve them before the context
28     manager exits.
29 
30     >>> with run_interactive_shell_command(["echo", "TEXT"]) as p:
31     ...     stdout = p.stdout
32     ...     stdout_text = stdout.read()
33     >>> stdout_text
34     'TEXT\\n'
35     >>> stdout.closed
36     True
37 
38     Custom streams provided are not closed except of ``subprocess.PIPE``.
39 
40     >>> from tempfile import TemporaryFile
41     >>> stream = TemporaryFile()
42     >>> with run_interactive_shell_command(["echo", "TEXT"],
43     ...                                    stdout=stream) as p:
44     ...     stderr = p.stderr
45     >>> stderr.closed
46     True
47     >>> stream.closed
48     False
49 
50     :param command: The command to run on shell. This parameter can either
51                     be a sequence of arguments that are directly passed to
52                     the process or a string. A string gets splitted beforehand
53                     using ``shlex.split()``. If providing ``shell=True`` as a
54                     keyword-argument, no ``shlex.split()`` is performed and the
55                     command string goes directly to ``subprocess.Popen()``.
56     :param kwargs:  Additional keyword arguments to pass to
57                     ``subprocess.Popen`` that are used to spawn the process.
58     :return:        A context manager yielding the process started from the
59                     command.
60     """
61     if not kwargs.get('shell', False) and isinstance(command, str):
62         command = shlex.split(command)
63 
64     args = {'stdout': PIPE,
65             'stderr': PIPE,
66             'stdin': PIPE,
67             'universal_newlines': True}
68     args.update(kwargs)
69 
70     process = Popen(command, **args)
71     try:
72         yield process
73     finally:
74         if args['stdout'] is PIPE:
75             process.stdout.close()
76         if args['stderr'] is PIPE:
77             process.stderr.close()
78         if args['stdin'] is PIPE:
79             process.stdin.close()
80 
81         process.wait()
82 
83 
84 def run_shell_command(command, stdin=None, **kwargs):
85     """
86     Runs a single command in shell and returns the read stdout and stderr data.
87 
88     This function waits for the process (created using ``subprocess.Popen()``)
89     to exit. Effectively it wraps ``run_interactive_shell_command()`` and uses
90     ``communicate()`` on the process.
91 
92     See also ``run_interactive_shell_command()``.
93 
94     :param command: The command to run on shell. This parameter can either
95                     be a sequence of arguments that are directly passed to
96                     the process or a string. A string gets splitted beforehand
97                     using ``shlex.split()``.
98     :param stdin:   Initial input to send to the process.
99     :param kwargs:  Additional keyword arguments to pass to
100                     ``subprocess.Popen`` that is used to spawn the process.
101     :return:        A tuple with ``(stdoutstring, stderrstring)``.
102     """
103     with run_interactive_shell_command(command, **kwargs) as p:
104         ret = p.communicate(stdin)
105     return ret
106 
107 
108 def get_shell_type():  # pragma: no cover
109     """
110     Finds the current shell type based on the outputs of common pre-defined
111     variables in them. This is useful to identify which sort of escaping
112     is required for strings.
113 
114     :return: The shell type. This can be either "powershell" if Windows
115              Powershell is detected, "cmd" if command prompt is been
116              detected or "sh" if it's neither of these.
117     """
118     out = run_shell_command('echo $host.name', shell=True)[0]
119     if out.strip() == 'ConsoleHost':
120         return 'powershell'
121     out = run_shell_command('echo $0', shell=True)[0]
122     if out.strip() == '$0':
123         return 'cmd'
124     return 'sh'
125
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/coalib/misc/Shell.py b/coalib/misc/Shell.py
--- a/coalib/misc/Shell.py
+++ b/coalib/misc/Shell.py
@@ -1,14 +1,6 @@
 from contextlib import contextmanager
-import functools
 import shlex
-from subprocess import PIPE, Popen, call, DEVNULL
-
-
-call_without_output = functools.partial(call, stdout=DEVNULL, stderr=DEVNULL)
-"""
-Uses subprocess.call to execute a command, but suppresses the output and
-the errors.
-"""
+from subprocess import PIPE, Popen
 
 
 @contextmanager

{"golden_diff": "diff --git a/coalib/misc/Shell.py b/coalib/misc/Shell.py\n--- a/coalib/misc/Shell.py\n+++ b/coalib/misc/Shell.py\n@@ -1,14 +1,6 @@\n from contextlib import contextmanager\n-import functools\n import shlex\n-from subprocess import PIPE, Popen, call, DEVNULL\n-\n-\n-call_without_output = functools.partial(call, stdout=DEVNULL, stderr=DEVNULL)\n-\"\"\"\n-Uses subprocess.call to execute a command, but suppresses the output and\n-the errors.\n-\"\"\"\n+from subprocess import PIPE, Popen\n \n \n @contextmanager\n", "issue": "Remove call_without_output from Shell.py L7\nThis line was used by the requirement classes, it isnt used anymore as they use sarge, so it should be removed.\r\ndifficulty/newcomer\n", "before_files": [{"content": "from contextlib import contextmanager\nimport functools\nimport shlex\nfrom subprocess import PIPE, Popen, call, DEVNULL\n\n\ncall_without_output = functools.partial(call, stdout=DEVNULL, stderr=DEVNULL)\n\"\"\"\nUses subprocess.call to execute a command, but suppresses the output and\nthe errors.\n\"\"\"\n\n\n@contextmanager\ndef run_interactive_shell_command(command, **kwargs):\n    \"\"\"\n    Runs a single command in shell and provides stdout, stderr and stdin\n    streams.\n\n    This function creates a context manager that sets up the process (using\n    ``subprocess.Popen()``), returns to caller and waits for process to exit on\n    leaving.\n\n    By default the process is opened in ``universal_newlines`` mode and creates\n    pipes for all streams (stdout, stderr and stdin) using ``subprocess.PIPE``\n    special value. These pipes are closed automatically, so if you want to get\n    the contents of the streams you should retrieve them before the context\n    manager exits.\n\n    >>> with run_interactive_shell_command([\"echo\", \"TEXT\"]) as p:\n    ...     stdout = p.stdout\n    ...     stdout_text = stdout.read()\n    >>> stdout_text\n    'TEXT\\\\n'\n    >>> stdout.closed\n    True\n\n    Custom streams provided are not closed except of ``subprocess.PIPE``.\n\n    >>> from tempfile import TemporaryFile\n    >>> stream = TemporaryFile()\n    >>> with run_interactive_shell_command([\"echo\", \"TEXT\"],\n    ...                                    stdout=stream) as p:\n    ...     stderr = p.stderr\n    >>> stderr.closed\n    True\n    >>> stream.closed\n    False\n\n    :param command: The command to run on shell. This parameter can either\n                    be a sequence of arguments that are directly passed to\n                    the process or a string. A string gets splitted beforehand\n                    using ``shlex.split()``. If providing ``shell=True`` as a\n                    keyword-argument, no ``shlex.split()`` is performed and the\n                    command string goes directly to ``subprocess.Popen()``.\n    :param kwargs:  Additional keyword arguments to pass to\n                    ``subprocess.Popen`` that are used to spawn the process.\n    :return:        A context manager yielding the process started from the\n                    command.\n    \"\"\"\n    if not kwargs.get('shell', False) and isinstance(command, str):\n        command = shlex.split(command)\n\n    args = {'stdout': PIPE,\n            'stderr': PIPE,\n            'stdin': PIPE,\n            'universal_newlines': True}\n    args.update(kwargs)\n\n    process = Popen(command, **args)\n    try:\n        yield process\n    finally:\n        if args['stdout'] is PIPE:\n            process.stdout.close()\n        if args['stderr'] is PIPE:\n            process.stderr.close()\n        if args['stdin'] is PIPE:\n            process.stdin.close()\n\n        process.wait()\n\n\ndef run_shell_command(command, stdin=None, **kwargs):\n    \"\"\"\n    Runs a single command in shell and returns the read stdout and stderr data.\n\n    This function waits for the process (created using ``subprocess.Popen()``)\n    to exit. Effectively it wraps ``run_interactive_shell_command()`` and uses\n    ``communicate()`` on the process.\n\n    See also ``run_interactive_shell_command()``.\n\n    :param command: The command to run on shell. This parameter can either\n                    be a sequence of arguments that are directly passed to\n                    the process or a string. A string gets splitted beforehand\n                    using ``shlex.split()``.\n    :param stdin:   Initial input to send to the process.\n    :param kwargs:  Additional keyword arguments to pass to\n                    ``subprocess.Popen`` that is used to spawn the process.\n    :return:        A tuple with ``(stdoutstring, stderrstring)``.\n    \"\"\"\n    with run_interactive_shell_command(command, **kwargs) as p:\n        ret = p.communicate(stdin)\n    return ret\n\n\ndef get_shell_type():  # pragma: no cover\n    \"\"\"\n    Finds the current shell type based on the outputs of common pre-defined\n    variables in them. This is useful to identify which sort of escaping\n    is required for strings.\n\n    :return: The shell type. This can be either \"powershell\" if Windows\n             Powershell is detected, \"cmd\" if command prompt is been\n             detected or \"sh\" if it's neither of these.\n    \"\"\"\n    out = run_shell_command('echo $host.name', shell=True)[0]\n    if out.strip() == 'ConsoleHost':\n        return 'powershell'\n    out = run_shell_command('echo $0', shell=True)[0]\n    if out.strip() == '$0':\n        return 'cmd'\n    return 'sh'\n", "path": "coalib/misc/Shell.py"}], "after_files": [{"content": "from contextlib import contextmanager\nimport shlex\nfrom subprocess import PIPE, Popen\n\n\n@contextmanager\ndef run_interactive_shell_command(command, **kwargs):\n    \"\"\"\n    Runs a single command in shell and provides stdout, stderr and stdin\n    streams.\n\n    This function creates a context manager that sets up the process (using\n    ``subprocess.Popen()``), returns to caller and waits for process to exit on\n    leaving.\n\n    By default the process is opened in ``universal_newlines`` mode and creates\n    pipes for all streams (stdout, stderr and stdin) using ``subprocess.PIPE``\n    special value. These pipes are closed automatically, so if you want to get\n    the contents of the streams you should retrieve them before the context\n    manager exits.\n\n    >>> with run_interactive_shell_command([\"echo\", \"TEXT\"]) as p:\n    ...     stdout = p.stdout\n    ...     stdout_text = stdout.read()\n    >>> stdout_text\n    'TEXT\\\\n'\n    >>> stdout.closed\n    True\n\n    Custom streams provided are not closed except of ``subprocess.PIPE``.\n\n    >>> from tempfile import TemporaryFile\n    >>> stream = TemporaryFile()\n    >>> with run_interactive_shell_command([\"echo\", \"TEXT\"],\n    ...                                    stdout=stream) as p:\n    ...     stderr = p.stderr\n    >>> stderr.closed\n    True\n    >>> stream.closed\n    False\n\n    :param command: The command to run on shell. This parameter can either\n                    be a sequence of arguments that are directly passed to\n                    the process or a string. A string gets splitted beforehand\n                    using ``shlex.split()``. If providing ``shell=True`` as a\n                    keyword-argument, no ``shlex.split()`` is performed and the\n                    command string goes directly to ``subprocess.Popen()``.\n    :param kwargs:  Additional keyword arguments to pass to\n                    ``subprocess.Popen`` that are used to spawn the process.\n    :return:        A context manager yielding the process started from the\n                    command.\n    \"\"\"\n    if not kwargs.get('shell', False) and isinstance(command, str):\n        command = shlex.split(command)\n\n    args = {'stdout': PIPE,\n            'stderr': PIPE,\n            'stdin': PIPE,\n            'universal_newlines': True}\n    args.update(kwargs)\n\n    process = Popen(command, **args)\n    try:\n        yield process\n    finally:\n        if args['stdout'] is PIPE:\n            process.stdout.close()\n        if args['stderr'] is PIPE:\n            process.stderr.close()\n        if args['stdin'] is PIPE:\n            process.stdin.close()\n\n        process.wait()\n\n\ndef run_shell_command(command, stdin=None, **kwargs):\n    \"\"\"\n    Runs a single command in shell and returns the read stdout and stderr data.\n\n    This function waits for the process (created using ``subprocess.Popen()``)\n    to exit. Effectively it wraps ``run_interactive_shell_command()`` and uses\n    ``communicate()`` on the process.\n\n    See also ``run_interactive_shell_command()``.\n\n    :param command: The command to run on shell. This parameter can either\n                    be a sequence of arguments that are directly passed to\n                    the process or a string. A string gets splitted beforehand\n                    using ``shlex.split()``.\n    :param stdin:   Initial input to send to the process.\n    :param kwargs:  Additional keyword arguments to pass to\n                    ``subprocess.Popen`` that is used to spawn the process.\n    :return:        A tuple with ``(stdoutstring, stderrstring)``.\n    \"\"\"\n    with run_interactive_shell_command(command, **kwargs) as p:\n        ret = p.communicate(stdin)\n    return ret\n\n\ndef get_shell_type():  # pragma: no cover\n    \"\"\"\n    Finds the current shell type based on the outputs of common pre-defined\n    variables in them. This is useful to identify which sort of escaping\n    is required for strings.\n\n    :return: The shell type. This can be either \"powershell\" if Windows\n             Powershell is detected, \"cmd\" if command prompt is been\n             detected or \"sh\" if it's neither of these.\n    \"\"\"\n    out = run_shell_command('echo $host.name', shell=True)[0]\n    if out.strip() == 'ConsoleHost':\n        return 'powershell'\n    out = run_shell_command('echo $0', shell=True)[0]\n    if out.strip() == '$0':\n        return 'cmd'\n    return 'sh'\n", "path": "coalib/misc/Shell.py"}]}