Merge branch 'master' of github.com:Torxed/archinstall into torxed-fix-350

8 files changed, 160 insertions, 121 deletions

diff --git a/archinstall/__init__.py b/archinstall/__init__.py
index bc58af54..e2c7ea62 100644
--- a/archinstall/__init__.py
+++ b/archinstall/__init__.py
@@ -3,7 +3,7 @@ from .lib.general import *
 from .lib.disk import *
 from .lib.user_interaction import *
 from .lib.exceptions import *
-from .lib.installer import __packages__, __base_packages__, Installer
+from .lib.installer import __packages__, Installer
 from .lib.profiles import *
 from .lib.luks import *
 from .lib.mirrors import *
diff --git a/archinstall/lib/disk.py b/archinstall/lib/disk.py
index ff924f62..fd08ea63 100644
--- a/archinstall/lib/disk.py
+++ b/archinstall/lib/disk.py
@@ -1,3 +1,4 @@
+from typing import Optional
 import glob, re, os, json, time, hashlib
 import pathlib, traceback, logging
 from collections import OrderedDict
@@ -205,7 +206,7 @@ class Partition():
 			return f'Partition(path={self.path}, size={self.size}, fs={self.filesystem}{mount_repr})'
 
 	@property
-	def uuid(self) -> str:
+	def uuid(self) -> Optional[str]:
 		"""
 		Returns the PARTUUID as returned by lsblk.
 		This is more reliable than relying on /dev/disk/by-partuuid as
@@ -214,7 +215,7 @@ class Partition():
 		lsblk = b''.join(sys_command(f'lsblk -J -o+PARTUUID {self.path}'))
 		for partition in json.loads(lsblk.decode('UTF-8'))['blockdevices']:
 			return partition.get('partuuid', None)
-
+		return None
 	@property
 	def encrypted(self):
 		return self._encrypted
@@ -471,7 +472,6 @@ class Filesystem():
 
 	def raw_parted(self, string:str):
 		x = sys_command(f'/usr/bin/parted -s {string}')
-		log(f"'parted -s {string}' returned: {b''.join(x)}", level=logging.DEBUG)
 		return x
 
 	def parted(self, string:str):
@@ -625,3 +625,11 @@ def get_filesystem_type(path):
 		return b''.join(handle).strip().decode('UTF-8')
 	except SysCallError:
 		return None
+
+def disk_layouts():
+	try:
+		handle = sys_command(f"lsblk -f -o+TYPE,SIZE -J")
+		return json.loads(b''.join(handle).decode('UTF-8'))
+	except SysCallError as err:
+		log(f"Could not return disk layouts: {err}")
+		return None
\ No newline at end of file
diff --git a/archinstall/lib/general.py b/archinstall/lib/general.py
index eb0c5d14..72f8677f 100644
--- a/archinstall/lib/general.py
+++ b/archinstall/lib/general.py
@@ -5,6 +5,7 @@ from subprocess import Popen, STDOUT, PIPE, check_output
 from select import epoll, EPOLLIN, EPOLLHUP
 from .exceptions import *
 from .output import log
+from typing import Optional, Union
 
 def gen_uid(entropy_length=256):
 	return hashlib.sha512(os.urandom(entropy_length)).hexdigest()
@@ -160,16 +161,15 @@ class sys_command():#Thread):
 			'exit_code': self.exit_code
 		}
 
-	def peak(self, output :str):
+	def peak(self, output : Union[str, bytes]) -> bool:
 		if type(output) == bytes:
 			try:
 				output = output.decode('UTF-8')
 			except UnicodeDecodeError:
-				return None
-
+				return False
 		output = output.strip('\r\n ')
 		if len(output) <= 0:
-			return None
+			return False
 
 		if self.peak_output:
 			from .user_interaction import get_terminal_width
@@ -191,6 +191,7 @@ class sys_command():#Thread):
 			# And print the new output we're peaking on:
 			sys.stdout.write(output)
 			sys.stdout.flush()
+		return True
 
 	def run(self):
 		self.status = 'running'
diff --git a/archinstall/lib/hardware.py b/archinstall/lib/hardware.py
index d6cf982c..009a3a6c 100644
--- a/archinstall/lib/hardware.py
+++ b/archinstall/lib/hardware.py
@@ -3,22 +3,53 @@ from .general import sys_command
 from .networking import list_interfaces, enrichIfaceTypes
 from typing import Optional
 
+__packages__ = [
+		"mesa",
+		"xf86-video-amdgpu",
+		"xf86-video-ati",
+		"xf86-video-nouveau",
+		"xf86-video-vmware",
+		"libva-mesa-driver",
+		"libva-intel-driver",
+		"intel-media-driver",
+		"vulkan-radeon",
+		"vulkan-intel",
+		"nvidia",
+]
+
 AVAILABLE_GFX_DRIVERS = {
 	# Sub-dicts are layer-2 options to be selected
 	# and lists are a list of packages to be installed
-	'AMD / ATI' : {
-		'amd' : ['xf86-video-amdgpu'],
-		'ati' : ['xf86-video-ati']
-	},
-	'intel' : ['xf86-video-intel'],
-	'nvidia' : {
-		'open-source' : ['xf86-video-nouveau'],
-		'proprietary' : ['nvidia']
+	"All open-source (default)": [
+		"mesa",
+		"xf86-video-amdgpu",
+		"xf86-video-ati",
+		"xf86-video-nouveau",
+		"xf86-video-vmware",
+		"libva-mesa-driver",
+		"libva-intel-driver",
+		"intel-media-driver",
+		"vulkan-radeon",
+		"vulkan-intel",
+	],
+	"AMD / ATI (open-source)": [
+		"mesa",
+		"xf86-video-amdgpu",
+		"xf86-video-ati",
+		"libva-mesa-driver",
+		"vulkan-radeon",
+	],
+	"Intel (open-source)": [
+		"mesa",
+		"libva-intel-driver",
+		"intel-media-driver",
+		"vulkan-intel",
+	],
+	"Nvidia": {
+		"open-source": ["mesa", "xf86-video-nouveau", "libva-mesa-driver"],
+		"proprietary": ["nvidia"],
 	},
-	'mesa' : ['mesa'],
-	'fbdev' : ['xf86-video-fbdev'],
-	'vesa' : ['xf86-video-vesa'],
-	'vmware' : ['xf86-video-vmware']
+	"VMware / VirtualBox (open-source)": ["mesa", "xf86-video-vmware"],
 }
 
 def hasWifi()->bool:
@@ -60,10 +91,11 @@ def cpuVendor()-> Optional[str]:
 		if info.get('field',None):
 			if info.get('field',None) == "Vendor ID:":
 				return info.get('data',None)
+	return None
 
 def isVM() -> bool:
 	try:
-		subprocess.check_call(["systemd-detect-virt"]) # systemd-detect-virt issues a none 0 exit code if it is not on a virtual machine
+		subprocess.check_call(["systemd-detect-virt"]) # systemd-detect-virt issues a non-zero exit code if it is not on a virtual machine
 		return True
 	except:
 		return False
diff --git a/archinstall/lib/installer.py b/archinstall/lib/installer.py
index 236b69d8..284a4e36 100644
--- a/archinstall/lib/installer.py
+++ b/archinstall/lib/installer.py
@@ -12,8 +12,7 @@ from .storage import storage
 from .hardware import *
 
 # Any package that the Installer() is responsible for (optional and the default ones)
-__packages__ = ["base", "base-devel", "linux", "linux-firmware", "efibootmgr", "nano", "ntp", "iwd"]
-__base_packages__ = __packages__[:6]
+__packages__ = ["base", "base-devel", "linux-firmware", "linux", "linux-lts", "linux-zen", "linux-hardened"]
 
 class Installer():
 	"""
@@ -39,8 +38,7 @@ class Installer():
 	:type hostname: str, optional
 
 	"""
-	def __init__(self, target, *, base_packages='base base-devel linux-firmware', kernels='linux'):
-		kernels = kernels.split(",")
+	def __init__(self, target, *, base_packages=__packages__[:3], kernels=['linux']):
 		self.target = target
 		self.init_time = time.strftime('%Y-%m-%d_%H-%M-%S')
 		self.milliseconds = int(str(time.time()).split('.')[1])
@@ -53,10 +51,7 @@ class Installer():
 		self.base_packages = base_packages.split(' ') if type(base_packages) is str else base_packages
 		for kernel in kernels:
 			self.base_packages.append(kernel)
-		if hasUEFI():
-			self.base_packages.append("efibootmgr")
-		else:
-			self.base_packages.append("grub")
+
 		self.post_base_install = []
 
 		storage['session'] = self
@@ -201,6 +196,9 @@ class Installer():
 		return sys_command(f'/usr/bin/arch-chroot {self.target} {cmd}')
 
 	def arch_chroot(self, cmd, *args, **kwargs):
+		if 'runas' in kwargs:
+			cmd = f"su - {kwargs['runas']} -c \"{cmd}\""
+			
 		return self.run_command(cmd)
 
 	def drop_to_shell(self):
@@ -364,12 +362,12 @@ class Installer():
 				boot_partition = partition
 			elif partition.mountpoint == self.target:
 				root_partition = partition
-		if hasUEFI():
-			self.log(f'Adding bootloader {bootloader} to {boot_partition}', level=logging.INFO)
-		else:
-			self.log(f'Adding bootloader {bootloader} to {root_partition}', level=logging.INFO)
+
+		self.log(f'Adding bootloader {bootloader} to {boot_partition if boot_partition else root_partition}', level=logging.INFO)
 
 		if bootloader == 'systemd-bootctl':
+			self.pacstrap('efibootmgr')
+
 			if not hasUEFI():
 				raise HardwareIncompatibilityError
 			# TODO: Ideally we would want to check if another config
@@ -432,7 +430,10 @@ class Installer():
 
 			raise RequirementError(f"Could not identify the UUID of {self.partition}, there for {self.target}/boot/loader/entries/arch.conf will be broken until fixed.")
 		elif bootloader == "grub-install":
+			self.pacstrap('grub')
+
 			if hasUEFI():
+				self.pacstrap('efibootmgr')
 				o = b''.join(sys_command(f'/usr/bin/arch-chroot {self.target} grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=GRUB'))
 				sys_command('/usr/bin/arch-chroot /mnt grub-mkconfig -o /boot/grub/grub.cfg')
 				return True
diff --git a/archinstall/lib/output.py b/archinstall/lib/output.py
index 06d99778..d6a197f1 100644
--- a/archinstall/lib/output.py
+++ b/archinstall/lib/output.py
@@ -19,7 +19,7 @@ class journald(dict):
 	@abc.abstractmethod
 	def log(message, level=logging.DEBUG):
 		try:
-			import systemd.journal
+			import systemd.journal # type: ignore
 		except ModuleNotFoundError:
 			return False
 
diff --git a/archinstall/lib/profiles.py b/archinstall/lib/profiles.py
index ad5d3bac..1feba1cd 100644
--- a/archinstall/lib/profiles.py
+++ b/archinstall/lib/profiles.py
@@ -1,3 +1,4 @@
+from typing import Optional
 import os, urllib.request, urllib.parse, ssl, json, re
 import importlib.util, sys, glob, hashlib, logging
 from collections import OrderedDict
@@ -49,7 +50,7 @@ def list_profiles(filter_irrelevant_macs=True, subpath='', filter_top_level_prof
 		except urllib.error.HTTPError as err:
 			print(f'Error: Listing profiles on URL "{profiles_url}" resulted in:', err)
 			return cache
-		except:
+		except json.decoder.JSONDecodeError as err:
 			print(f'Error: Could not decode "{profiles_url}" result as JSON:', err)
 			return cache
 		
@@ -92,6 +93,9 @@ class Script():
 		if len(args) >= 2 and args[1]:
 			raise args[1]
 
+		if self.original_namespace:
+			self.namespace = self.original_namespace
+
 	def localize_path(self, profile_path):
 		if (url := urllib.parse.urlparse(profile_path)).scheme and url.scheme in ('https', 'http'):
 			if not self.converted_path:
@@ -202,54 +206,17 @@ class Profile(Script):
 		with open(self.path, 'r') as source:
 			source_data = source.read()
 
-			# TODO: I imagine that there is probably a better way to write this.
-			return 'top_level_profile = True' in source_data
-
-	@property
-	def packages(self) -> list:
-		"""
-		Returns a list of packages baked into the profile definition.
-		If no package definition has been done, .packages() will return None.
-		"""
-		with open(self.path, 'r') as source:
-			source_data = source.read()
-
-			# Some crude safety checks, make sure the imported profile has
-			# a __name__ check before importing.
-			#
-			# If the requirements are met, import with .py in the namespace to not
-			# trigger a traditional:
-			#     if __name__ == 'moduleName'
-			if '__name__' in source_data and '__packages__' in source_data:
+			if '__name__' in source_data and 'is_top_level_profile' in source_data:
 				with self.load_instructions(namespace=f"{self.namespace}.py") as imported:
-					if hasattr(imported, '__packages__'):
-						return imported.__packages__
-		return None
-	
+					if hasattr(imported, 'is_top_level_profile'):
+						return imported.is_top_level_profile
 
-	def has_post_install(self):
-		with open(self.path, 'r') as source:
-			source_data = source.read()
-
-			# Some crude safety checks, make sure the imported profile has
-			# a __name__ check and if so, check if it's got a _prep_function()
-			# we can call to ask for more user input.
-			#
-			# If the requirements are met, import with .py in the namespace to not
-			# trigger a traditional:
-			#     if __name__ == 'moduleName'
-			if '__name__' in source_data and '_post_install' in source_data:
-				with self.load_instructions(namespace=f"{self.namespace}.py") as imported:
-					if hasattr(imported, '_post_install'):
-						return True
-
-	def is_top_level_profile(self):
-		with open(self.path, 'r') as source:
-			source_data = source.read()
-			return 'top_level_profile = True' in source_data
+		# Default to True if nothing is specified,
+		# since developers like less code - omitting it should assume they want to present it.
+		return True
 
 	@property
-	def packages(self) -> list:
+	def packages(self) -> Optional[list]:
 		"""
 		Returns a list of packages baked into the profile definition.
 		If no package definition has been done, .packages() will return None.
@@ -268,7 +235,6 @@ class Profile(Script):
 					if hasattr(imported, '__packages__'):
 						return imported.__packages__
 		return None
-	
 
 class Application(Profile):
 	def __repr__(self, *args, **kwargs):
diff --git a/archinstall/lib/user_interaction.py b/archinstall/lib/user_interaction.py
index 451251cd..c76dc9a5 100644
--- a/archinstall/lib/user_interaction.py
+++ b/archinstall/lib/user_interaction.py
@@ -83,16 +83,18 @@ def get_password(prompt="Enter a password: "):
 def print_large_list(options, padding=5, margin_bottom=0, separator=': '):
 	highest_index_number_length = len(str(len(options)))
 	longest_line = highest_index_number_length + len(separator) + get_longest_option(options) + padding
+	spaces_without_option = longest_line - (len(separator) + highest_index_number_length)
 	max_num_of_columns = get_terminal_width() // longest_line
 	max_options_in_cells = max_num_of_columns * (get_terminal_height()-margin_bottom)
 
 	if (len(options) > max_options_in_cells):
 		for index, option in enumerate(options):
 			print(f"{index}: {option}")
+		return 1, index
 	else:
 		for row in range(0, (get_terminal_height()-margin_bottom)):
 			for column in range(row, len(options), (get_terminal_height()-margin_bottom)):
-				spaces = " "*(longest_line - len(options[column]))
+				spaces = " "*(spaces_without_option - len(options[column]))
 				print(f"{str(column): >{highest_index_number_length}}{separator}{options[column]}", end = spaces)
 			print()
 
@@ -100,6 +102,18 @@ def print_large_list(options, padding=5, margin_bottom=0, separator=': '):
 
 
 def generic_multi_select(options, text="Select one or more of the options above (leave blank to continue): ", sort=True, default=None, allow_empty=False):
+	# Checking if the options are different from `list` or `dict` or if they are empty
+	if type(options) not in [list, dict]:
+		log(f" * Generic multi-select doesn't support ({type(options)}) as type of options * ", fg='red')
+		log(" * If problem persists, please create an issue on https://github.com/archlinux/archinstall/issues * ", fg='yellow')
+		raise RequirementError("generic_multi_select() requires list or dictionary as options.")
+	if not options:
+		log(f" * Generic multi-select didn't find any options to choose from * ", fg='red')
+		log(" * If problem persists, please create an issue on https://github.com/archlinux/archinstall/issues * ", fg='yellow')
+		raise RequirementError('generic_multi_select() requires at least one option to proceed.')
+	# After passing the checks, function continues to work
+	if type(options) == dict:
+		options = list(options.values())
 	if sort:
 		options = sorted(options)
 
@@ -108,7 +122,7 @@ def generic_multi_select(options, text="Select one or more of the options above
 	selected_options = []
 
 	while True:
-		if len(selected_options) <= 0 and default and default in options:
+		if not selected_options and default in options:
 			selected_options.append(default)
 
 		printed_options = []
@@ -119,32 +133,42 @@ def generic_multi_select(options, text="Select one or more of the options above
 				printed_options.append(f'{option}')
 
 		section.clear(0, get_terminal_height()-section._cursor_y-1)
-		x, y = print_large_list(printed_options, margin_bottom=2)
+		print_large_list(printed_options, margin_bottom=2)
 		section._cursor_y = len(printed_options)
 		section._cursor_x = 0
 		section.write_line(text)
 		section.input_pos = section._cursor_x
 		selected_option = section.get_keyboard_input(end=None)
-
-		if selected_option is None:
-			if len(selected_options) <= 0 and default:
-				selected_options = [default]
-
-			if len(selected_options) or allow_empty is True:
-				break
-			else:
-				log('* Need to select at least one option!', fg='red')
-				continue
-
-		elif selected_option.isdigit():
-			if (selected_option := int(selected_option)) >= len(options):
-				log('* Option is out of range, please select another one!', fg='red')
-				continue
-			selected_option = options[selected_option]
-			if selected_option in selected_options:
-				selected_options.remove(selected_option)
+		# This string check is necessary to correct work with it
+		# Without this, Python will raise AttributeError because of stripping `None` 
+		# It also allows to remove empty spaces if the user accidentally entered them.
+		if isinstance(selected_option, str):
+			selected_option = selected_option.strip()
+		try:
+			if not selected_option:
+				if not selected_options and default:
+					selected_options = [default]
+				elif selected_options or allow_empty:
+					break
+				else:
+					raise RequirementError('Please select at least one option to continue')
+			elif selected_option.isnumeric():
+				if (selected_option := int(selected_option)) >= len(options):
+					raise RequirementError(f'Selected option "{selected_option}" is out of range')
+				selected_option = options[selected_option]
+				if selected_option in selected_options:
+					selected_options.remove(selected_option)
+				else:
+					selected_options.append(selected_option)
+			elif selected_option in options:
+				if selected_option in selected_options:
+					selected_options.remove(selected_option)
+				else:
+					selected_options.append(selected_option)
 			else:
-				selected_options.append(selected_option)
+				raise RequirementError(f'Selected option "{selected_option}" does not exist in available options')
+		except RequirementError as e:
+			log(f" * {e} * ", fg='red')
 
 	return selected_options
 
@@ -263,14 +287,14 @@ class MiniCurses():
 		if response:
 			return response
 
-def ask_for_superuser_account(prompt='Username for required super-user with sudo privileges: ', forced=False):
+def ask_for_superuser_account(prompt='Username for required superuser with sudo privileges: ', forced=False):
 	while 1:
 		new_user = input(prompt).strip(' ')
 
 		if not new_user and forced:
 			# TODO: make this text more generic?
 			#       It's only used to create the first sudo user when root is disabled in guided.py
-			log(' * Since root is disabled, you need to create a least one (super) user!', fg='red')
+			log(' * Since root is disabled, you need to create a least one superuser!', fg='red')
 			continue
 		elif not new_user and not forced:
 			raise UserError("No superuser was created.")
@@ -282,7 +306,7 @@ def ask_for_superuser_account(prompt='Username for required super-user with sudo
 
 def ask_for_additional_users(prompt='Any additional users to install (leave blank for no users): '):
 	users = {}
-	super_users = {}
+	superusers = {}
 
 	while 1:
 		new_user = input(prompt).strip(' ')
@@ -292,12 +316,12 @@ def ask_for_additional_users(prompt='Any additional users to install (leave blan
 			continue
 		password = get_password(prompt=f'Password for user {new_user}: ')
 		
-		if input("Should this user be a sudo (super) user (y/N): ").strip(' ').lower() in ('y', 'yes'):
-			super_users[new_user] = {"!password" : password}
+		if input("Should this user be a superuser (sudoer) [y/N]: ").strip(' ').lower() in ('y', 'yes'):
+			superusers[new_user] = {"!password" : password}
 		else:
 			users[new_user] = {"!password" : password}
 
-	return users, super_users
+	return users, superusers
 
 def ask_for_a_timezone():
 	while True:
@@ -435,20 +459,24 @@ def generic_select(options, input_text="Select one of the above by index or abso
 	this function returns an item from list, a string, or None
 	"""
 
-	# Checking if options are different from `list` or `dict`
+	# Checking if the options are different from `list` or `dict` or if they are empty
 	if type(options) not in [list, dict]:
 		log(f" * Generic select doesn't support ({type(options)}) as type of options * ", fg='red')
 		log(" * If problem persists, please create an issue on https://github.com/archlinux/archinstall/issues * ", fg='yellow')
 		raise RequirementError("generic_select() requires list or dictionary as options.")
-	# To allow only `list` and `dict`, converting values of options here.
-	# Therefore, now we can only provide the dictionary itself
-	if type(options) == dict: options = list(options.values())
-	if sort: options = sorted(options) # As we pass only list and dict (converted to list), we can skip converting to list
-	if len(options) == 0:
+	if not options:
 		log(f" * Generic select didn't find any options to choose from * ", fg='red')
 		log(" * If problem persists, please create an issue on https://github.com/archlinux/archinstall/issues * ", fg='yellow')
 		raise RequirementError('generic_select() requires at least one option to proceed.')
-	
+	# After passing the checks, function continues to work
+	if type(options) == dict:
+		# To allow only `list` and `dict`, converting values of options here.
+		# Therefore, now we can only provide the dictionary itself
+		options = list(options.values())
+	if sort:
+		# As we pass only list and dict (converted to list), we can skip converting to list
+		options = sorted(options)
+
 
 	# Added ability to disable the output of options items,
 	# if another function displays something different from this
@@ -460,8 +488,8 @@ def generic_select(options, input_text="Select one of the above by index or abso
 	# Now the try...except block handles validation for invalid input from the user
 	while True:
 		try:
-			selected_option = input(input_text)
-			if len(selected_option.strip()) == 0:
+			selected_option = input(input_text).strip()
+			if not selected_option:
 				# `allow_empty_input` parameter handles return of None on empty input, if necessary
 				# Otherwise raise `RequirementError`
 				if allow_empty_input:
@@ -469,8 +497,7 @@ def generic_select(options, input_text="Select one of the above by index or abso
 				raise RequirementError('Please select an option to continue')
 			# Replaced `isdigit` with` isnumeric` to discard all negative numbers
 			elif selected_option.isnumeric():
-				selected_option = int(selected_option)
-				if selected_option >= len(options):
+				if (selected_option := int(selected_option)) >= len(options):
 					raise RequirementError(f'Selected option "{selected_option}" is out of range')
 				selected_option = options[selected_option]
 				break
@@ -480,7 +507,6 @@ def generic_select(options, input_text="Select one of the above by index or abso
 				raise RequirementError(f'Selected option "{selected_option}" does not exist in available options')
 		except RequirementError as err:
 			log(f" * {err} * ", fg='red')
-			continue
 
 	return selected_option
 
@@ -649,6 +675,7 @@ def select_driver(options=AVAILABLE_GFX_DRIVERS):
 	"""
 	
 	drivers = sorted(list(options))
+	default_option = options["All open-source (default)"]
 	
 	if drivers:
 		lspci = sys_command(f'/usr/bin/lspci')
@@ -660,6 +687,10 @@ def select_driver(options=AVAILABLE_GFX_DRIVERS):
 					print(' ** AMD card detected, suggested driver: AMD / ATI **')
 
 		initial_option = generic_select(drivers, input_text="Select your graphics card driver: ")
+
+		if not initial_option:
+			return default_option
+
 		selected_driver = options[initial_option]
 
 		if type(selected_driver) == dict:
@@ -691,6 +722,6 @@ def select_kernel(options):
 	kernels = sorted(list(options))
 	
 	if kernels:
-		return generic_multi_select(kernels, f"Choose which kernel to use (leave blank for default: {DEFAULT_KERNEL}): ", default=DEFAULT_KERNEL)
+		return generic_multi_select(kernels, f"Choose which kernels to use (leave blank for default: {DEFAULT_KERNEL}): ", default=DEFAULT_KERNEL, sort=False)
 		
 	raise RequirementError("Selecting kernels require a least one kernel to be given as an option.")