cosmetic: Switch to consistent four-spaces indent; run autopep8

We had a mixture of tab and 4space based indenting, which is a bad
idea.  4space is the standard in python, so convert all our code to
that.  The result unfortuantely still shoed even more inconsistencies,
so I've decided to run autopep8 on the entire code base.

Change-Id: I4a4b1b444a2f43fab05fc5d2c8a7dd6ddecb5f07
diff --git a/pySim-read.py b/pySim-read.py
index 5e48116..b7fe1f2 100755
--- a/pySim-read.py
+++ b/pySim-read.py
@@ -41,312 +41,322 @@
 from pySim.utils import h2s, format_ePDGSelection
 
 option_parser = argparse.ArgumentParser(prog='pySim-read',
-                        description='Legacy tool for reading some parts of a SIM card',
-                        formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+                                        description='Legacy tool for reading some parts of a SIM card',
+                                        formatter_class=argparse.ArgumentDefaultsHelpFormatter)
 argparse_add_reader_args(option_parser)
 
-def select_app(adf:str, card:SimCard):
-	"""Select application by its AID"""
-	sw = 0
-	try:
-		if card._scc.cla_byte == "00":
-			data, sw = card.select_adf_by_aid(adf)
-	except SwMatchError as e:
-		if e.sw_actual == "6a82":
-			# If we can't select the file because it does not exist, we just remain silent since it means
-			# that this card just does not have an USIM application installed, which is not an error.
-			pass
-		else:
-			print("ADF." + adf + ": Can't select application -- " + str(e))
-	except Exception as e:
-		print("ADF." + adf + ": Can't select application -- " + str(e))
 
-	return sw
+def select_app(adf: str, card: SimCard):
+    """Select application by its AID"""
+    sw = 0
+    try:
+        if card._scc.cla_byte == "00":
+            data, sw = card.select_adf_by_aid(adf)
+    except SwMatchError as e:
+        if e.sw_actual == "6a82":
+            # If we can't select the file because it does not exist, we just remain silent since it means
+            # that this card just does not have an USIM application installed, which is not an error.
+            pass
+        else:
+            print("ADF." + adf + ": Can't select application -- " + str(e))
+    except Exception as e:
+        print("ADF." + adf + ": Can't select application -- " + str(e))
+
+    return sw
+
 
 if __name__ == '__main__':
 
-	# Parse options
-	opts = option_parser.parse_args()
+    # Parse options
+    opts = option_parser.parse_args()
 
-	# Init card reader driver
-	sl = init_reader(opts)
-	if sl is None:
-		exit(1)
+    # Init card reader driver
+    sl = init_reader(opts)
+    if sl is None:
+        exit(1)
 
-	# Create command layer
-	scc = SimCardCommands(transport=sl)
+    # Create command layer
+    scc = SimCardCommands(transport=sl)
 
-	# Wait for SIM card
-	sl.wait_for_card()
+    # Wait for SIM card
+    sl.wait_for_card()
 
-	# Assuming UICC SIM
-	scc.cla_byte = "00"
-	scc.sel_ctrl = "0004"
+    # Assuming UICC SIM
+    scc.cla_byte = "00"
+    scc.sel_ctrl = "0004"
 
-	# Testing for Classic SIM or UICC
-	(res, sw) = sl.send_apdu(scc.cla_byte + "a4" + scc.sel_ctrl + "02" + "3f00")
-	if sw == '6e00':
-		# Just a Classic SIM
-		scc.cla_byte = "a0"
-		scc.sel_ctrl = "0000"
+    # Testing for Classic SIM or UICC
+    (res, sw) = sl.send_apdu(scc.cla_byte + "a4" + scc.sel_ctrl + "02" + "3f00")
+    if sw == '6e00':
+        # Just a Classic SIM
+        scc.cla_byte = "a0"
+        scc.sel_ctrl = "0000"
 
-	# Read the card
-	print("Reading ...")
+    # Read the card
+    print("Reading ...")
 
-	# Initialize Card object by auto detecting the card
-	card = card_detect("auto", scc) or SimCard(scc)
+    # Initialize Card object by auto detecting the card
+    card = card_detect("auto", scc) or SimCard(scc)
 
-	# Read all AIDs on the UICC
-	card.read_aids()
+    # Read all AIDs on the UICC
+    card.read_aids()
 
-	# EF.ICCID
-	(res, sw) = card.read_iccid()
-	if sw == '9000':
-		print("ICCID: %s" % (res,))
-	else:
-		print("ICCID: Can't read, response code = %s" % (sw,))
+    # EF.ICCID
+    (res, sw) = card.read_iccid()
+    if sw == '9000':
+        print("ICCID: %s" % (res,))
+    else:
+        print("ICCID: Can't read, response code = %s" % (sw,))
 
-	# EF.IMSI
-	(res, sw) = card.read_imsi()
-	if sw == '9000':
-		print("IMSI: %s" % (res,))
-	else:
-		print("IMSI: Can't read, response code = %s" % (sw,))
+    # EF.IMSI
+    (res, sw) = card.read_imsi()
+    if sw == '9000':
+        print("IMSI: %s" % (res,))
+    else:
+        print("IMSI: Can't read, response code = %s" % (sw,))
 
-	# EF.GID1
-	try:
-		(res, sw) = card.read_gid1()
-		if sw == '9000':
-			print("GID1: %s" % (res,))
-		else:
-			print("GID1: Can't read, response code = %s" % (sw,))
-	except Exception as e:
-		print("GID1: Can't read file -- %s" % (str(e),))
+    # EF.GID1
+    try:
+        (res, sw) = card.read_gid1()
+        if sw == '9000':
+            print("GID1: %s" % (res,))
+        else:
+            print("GID1: Can't read, response code = %s" % (sw,))
+    except Exception as e:
+        print("GID1: Can't read file -- %s" % (str(e),))
 
-	# EF.GID2
-	try:
-		(res, sw) = card.read_binary('GID2')
-		if sw == '9000':
-			print("GID2: %s" % (res,))
-		else:
-			print("GID2: Can't read, response code = %s" % (sw,))
-	except Exception as e:
-		print("GID2: Can't read file -- %s" % (str(e),))
+    # EF.GID2
+    try:
+        (res, sw) = card.read_binary('GID2')
+        if sw == '9000':
+            print("GID2: %s" % (res,))
+        else:
+            print("GID2: Can't read, response code = %s" % (sw,))
+    except Exception as e:
+        print("GID2: Can't read file -- %s" % (str(e),))
 
-	# EF.SMSP
-	(res, sw) = card.read_record('SMSP', 1)
-	if sw == '9000':
-		print("SMSP: %s" % (res,))
-	else:
-		print("SMSP: Can't read, response code = %s" % (sw,))
+    # EF.SMSP
+    (res, sw) = card.read_record('SMSP', 1)
+    if sw == '9000':
+        print("SMSP: %s" % (res,))
+    else:
+        print("SMSP: Can't read, response code = %s" % (sw,))
 
-	# EF.SPN
-	try:
-		(res, sw) = card.read_spn()
-		if sw == '9000':
-			print("SPN: %s" % (res[0] or "Not available"))
-			print("Show in HPLMN: %s" % (res[1],))
-			print("Hide in OPLMN: %s" % (res[2],))
-		else:
-			print("SPN: Can't read, response code = %s" % (sw,))
-	except Exception as e:
-		print("SPN: Can't read file -- %s" % (str(e),))
+    # EF.SPN
+    try:
+        (res, sw) = card.read_spn()
+        if sw == '9000':
+            print("SPN: %s" % (res[0] or "Not available"))
+            print("Show in HPLMN: %s" % (res[1],))
+            print("Hide in OPLMN: %s" % (res[2],))
+        else:
+            print("SPN: Can't read, response code = %s" % (sw,))
+    except Exception as e:
+        print("SPN: Can't read file -- %s" % (str(e),))
 
-	# EF.PLMNsel
-	try:
-		(res, sw) = card.read_binary('PLMNsel')
-		if sw == '9000':
-			print("PLMNsel: %s" % (res))
-		else:
-			print("PLMNsel: Can't read, response code = %s" % (sw,))
-	except Exception as e:
-		print("PLMNsel: Can't read file -- " + str(e))
+    # EF.PLMNsel
+    try:
+        (res, sw) = card.read_binary('PLMNsel')
+        if sw == '9000':
+            print("PLMNsel: %s" % (res))
+        else:
+            print("PLMNsel: Can't read, response code = %s" % (sw,))
+    except Exception as e:
+        print("PLMNsel: Can't read file -- " + str(e))
 
-	# EF.PLMNwAcT
-	try:
-		(res, sw) = card.read_plmn_act()
-		if sw == '9000':
-			print("PLMNwAcT:\n%s" % (res))
-		else:
-			print("PLMNwAcT: Can't read, response code = %s" % (sw,))
-	except Exception as e:
-		print("PLMNwAcT: Can't read file -- " + str(e))
+    # EF.PLMNwAcT
+    try:
+        (res, sw) = card.read_plmn_act()
+        if sw == '9000':
+            print("PLMNwAcT:\n%s" % (res))
+        else:
+            print("PLMNwAcT: Can't read, response code = %s" % (sw,))
+    except Exception as e:
+        print("PLMNwAcT: Can't read file -- " + str(e))
 
-	# EF.OPLMNwAcT
-	try:
-		(res, sw) = card.read_oplmn_act()
-		if sw == '9000':
-			print("OPLMNwAcT:\n%s" % (res))
-		else:
-			print("OPLMNwAcT: Can't read, response code = %s" % (sw,))
-	except Exception as e:
-		print("OPLMNwAcT: Can't read file -- " + str(e))
+    # EF.OPLMNwAcT
+    try:
+        (res, sw) = card.read_oplmn_act()
+        if sw == '9000':
+            print("OPLMNwAcT:\n%s" % (res))
+        else:
+            print("OPLMNwAcT: Can't read, response code = %s" % (sw,))
+    except Exception as e:
+        print("OPLMNwAcT: Can't read file -- " + str(e))
 
-	# EF.HPLMNAcT
-	try:
-		(res, sw) = card.read_hplmn_act()
-		if sw == '9000':
-			print("HPLMNAcT:\n%s" % (res))
-		else:
-			print("HPLMNAcT: Can't read, response code = %s" % (sw,))
-	except Exception as e:
-		print("HPLMNAcT: Can't read file -- " + str(e))
+    # EF.HPLMNAcT
+    try:
+        (res, sw) = card.read_hplmn_act()
+        if sw == '9000':
+            print("HPLMNAcT:\n%s" % (res))
+        else:
+            print("HPLMNAcT: Can't read, response code = %s" % (sw,))
+    except Exception as e:
+        print("HPLMNAcT: Can't read file -- " + str(e))
 
-	# EF.ACC
-	(res, sw) = card.read_binary('ACC')
-	if sw == '9000':
-		print("ACC: %s" % (res,))
-	else:
-		print("ACC: Can't read, response code = %s" % (sw,))
+    # EF.ACC
+    (res, sw) = card.read_binary('ACC')
+    if sw == '9000':
+        print("ACC: %s" % (res,))
+    else:
+        print("ACC: Can't read, response code = %s" % (sw,))
 
-	# EF.MSISDN
-	try:
-		(res, sw) = card.read_msisdn()
-		if sw == '9000':
-			# (npi, ton, msisdn) = res
-			if res is not None:
-				print("MSISDN (NPI=%d ToN=%d): %s" % res)
-			else:
-				print("MSISDN: Not available")
-		else:
-			print("MSISDN: Can't read, response code = %s" % (sw,))
-	except Exception as e:
-		print("MSISDN: Can't read file -- " + str(e))
+    # EF.MSISDN
+    try:
+        (res, sw) = card.read_msisdn()
+        if sw == '9000':
+            # (npi, ton, msisdn) = res
+            if res is not None:
+                print("MSISDN (NPI=%d ToN=%d): %s" % res)
+            else:
+                print("MSISDN: Not available")
+        else:
+            print("MSISDN: Can't read, response code = %s" % (sw,))
+    except Exception as e:
+        print("MSISDN: Can't read file -- " + str(e))
 
-	# EF.AD
-	(res, sw) = card.read_binary('AD')
-	if sw == '9000':
-		print("Administrative data: %s" % (res,))
-		ad = EF_AD()
-		decoded_data = ad.decode_hex(res)
-		print("\tMS operation mode: %s" % decoded_data['ms_operation_mode'])
-		if decoded_data['ofm']:
-			print("\tCiphering Indicator: enabled")
-		else:
-			print("\tCiphering Indicator: disabled")
-	else:
-		print("AD: Can't read, response code = %s" % (sw,))
+    # EF.AD
+    (res, sw) = card.read_binary('AD')
+    if sw == '9000':
+        print("Administrative data: %s" % (res,))
+        ad = EF_AD()
+        decoded_data = ad.decode_hex(res)
+        print("\tMS operation mode: %s" % decoded_data['ms_operation_mode'])
+        if decoded_data['ofm']:
+            print("\tCiphering Indicator: enabled")
+        else:
+            print("\tCiphering Indicator: disabled")
+    else:
+        print("AD: Can't read, response code = %s" % (sw,))
 
-	# EF.SST
-	(res, sw) = card.read_binary('SST')
-	if sw == '9000':
-		print("SIM Service Table: %s" % res)
-		# Print those which are available
-		print("%s" % dec_st(res))
-	else:
-		print("SIM Service Table: Can't read, response code = %s" % (sw,))
+    # EF.SST
+    (res, sw) = card.read_binary('SST')
+    if sw == '9000':
+        print("SIM Service Table: %s" % res)
+        # Print those which are available
+        print("%s" % dec_st(res))
+    else:
+        print("SIM Service Table: Can't read, response code = %s" % (sw,))
 
-	# Check whether we have th AID of USIM, if so select it by its AID
-	# EF.UST - File Id in ADF USIM : 6f38
-	sw = select_app("USIM", card)
-	if sw == '9000':
-		# Select USIM profile
-		usim_card = UsimCard(scc)
+    # Check whether we have th AID of USIM, if so select it by its AID
+    # EF.UST - File Id in ADF USIM : 6f38
+    sw = select_app("USIM", card)
+    if sw == '9000':
+        # Select USIM profile
+        usim_card = UsimCard(scc)
 
-		# EF.EHPLMN
-		if usim_card.file_exists(EF_USIM_ADF_map['EHPLMN']):
-			(res, sw) = usim_card.read_ehplmn()
-			if sw == '9000':
-				print("EHPLMN:\n%s" % (res))
-			else:
-				print("EHPLMN: Can't read, response code = %s" % (sw,))
+        # EF.EHPLMN
+        if usim_card.file_exists(EF_USIM_ADF_map['EHPLMN']):
+            (res, sw) = usim_card.read_ehplmn()
+            if sw == '9000':
+                print("EHPLMN:\n%s" % (res))
+            else:
+                print("EHPLMN: Can't read, response code = %s" % (sw,))
 
-		# EF.UST
-		try:
-			if usim_card.file_exists(EF_USIM_ADF_map['UST']):
-				# res[0] - EF content of UST
-				# res[1] - Human readable format of services marked available in UST
-				(res, sw) = usim_card.read_ust()
-				if sw == '9000':
-					print("USIM Service Table: %s" % res[0])
-					print("%s" % res[1])
-				else:
-					print("USIM Service Table: Can't read, response code = %s" % (sw,))
-		except Exception as e:
-			print("USIM Service Table: Can't read file -- " + str(e))
+        # EF.UST
+        try:
+            if usim_card.file_exists(EF_USIM_ADF_map['UST']):
+                # res[0] - EF content of UST
+                # res[1] - Human readable format of services marked available in UST
+                (res, sw) = usim_card.read_ust()
+                if sw == '9000':
+                    print("USIM Service Table: %s" % res[0])
+                    print("%s" % res[1])
+                else:
+                    print("USIM Service Table: Can't read, response code = %s" % (sw,))
+        except Exception as e:
+            print("USIM Service Table: Can't read file -- " + str(e))
 
-		#EF.ePDGId - Home ePDG Identifier
-		try:
-			if usim_card.file_exists(EF_USIM_ADF_map['ePDGId']):
-				(res, sw) = usim_card.read_epdgid()
-				if sw == '9000':
-					print("ePDGId:\n%s" % (len(res) and res or '\tNot available\n',))
-				else:
-					print("ePDGId: Can't read, response code = %s" % (sw,))
-		except Exception as e:
-			print("ePDGId: Can't read file -- " + str(e))
+        # EF.ePDGId - Home ePDG Identifier
+        try:
+            if usim_card.file_exists(EF_USIM_ADF_map['ePDGId']):
+                (res, sw) = usim_card.read_epdgid()
+                if sw == '9000':
+                    print("ePDGId:\n%s" %
+                          (len(res) and res or '\tNot available\n',))
+                else:
+                    print("ePDGId: Can't read, response code = %s" % (sw,))
+        except Exception as e:
+            print("ePDGId: Can't read file -- " + str(e))
 
-		#EF.ePDGSelection - ePDG Selection Information
-		try:
-			if usim_card.file_exists(EF_USIM_ADF_map['ePDGSelection']):
-				(res, sw) = usim_card.read_ePDGSelection()
-				if sw == '9000':
-					print("ePDGSelection:\n%s" % (res,))
-				else:
-					print("ePDGSelection: Can't read, response code = %s" % (sw,))
-		except Exception as e:
-			print("ePDGSelection: Can't read file -- " + str(e))
+        # EF.ePDGSelection - ePDG Selection Information
+        try:
+            if usim_card.file_exists(EF_USIM_ADF_map['ePDGSelection']):
+                (res, sw) = usim_card.read_ePDGSelection()
+                if sw == '9000':
+                    print("ePDGSelection:\n%s" % (res,))
+                else:
+                    print("ePDGSelection: Can't read, response code = %s" % (sw,))
+        except Exception as e:
+            print("ePDGSelection: Can't read file -- " + str(e))
 
-	# Select ISIM application by its AID
-	sw = select_app("ISIM", card)
-	if sw == '9000':
-		# Select USIM profile
-		isim_card = IsimCard(scc)
+    # Select ISIM application by its AID
+    sw = select_app("ISIM", card)
+    if sw == '9000':
+        # Select USIM profile
+        isim_card = IsimCard(scc)
 
-		#EF.P-CSCF - P-CSCF Address
-		try:
-			if isim_card.file_exists(EF_ISIM_ADF_map['PCSCF']):
-				res = isim_card.read_pcscf()
-				print("P-CSCF:\n%s" % (len(res) and res or '\tNot available\n',))
-		except Exception as e:
-			print("P-CSCF: Can't read file -- " + str(e))
+        # EF.P-CSCF - P-CSCF Address
+        try:
+            if isim_card.file_exists(EF_ISIM_ADF_map['PCSCF']):
+                res = isim_card.read_pcscf()
+                print("P-CSCF:\n%s" %
+                      (len(res) and res or '\tNot available\n',))
+        except Exception as e:
+            print("P-CSCF: Can't read file -- " + str(e))
 
-		# EF.DOMAIN - Home Network Domain Name e.g. ims.mncXXX.mccXXX.3gppnetwork.org
-		try:
-			if isim_card.file_exists(EF_ISIM_ADF_map['DOMAIN']):
-				(res, sw) = isim_card.read_domain()
-				if sw == '9000':
-					print("Home Network Domain Name: %s" % (len(res) and res or 'Not available',))
-				else:
-					print("Home Network Domain Name: Can't read, response code = %s" % (sw,))
-		except Exception as e:
-			print("Home Network Domain Name: Can't read file -- " + str(e))
+        # EF.DOMAIN - Home Network Domain Name e.g. ims.mncXXX.mccXXX.3gppnetwork.org
+        try:
+            if isim_card.file_exists(EF_ISIM_ADF_map['DOMAIN']):
+                (res, sw) = isim_card.read_domain()
+                if sw == '9000':
+                    print("Home Network Domain Name: %s" %
+                          (len(res) and res or 'Not available',))
+                else:
+                    print(
+                        "Home Network Domain Name: Can't read, response code = %s" % (sw,))
+        except Exception as e:
+            print("Home Network Domain Name: Can't read file -- " + str(e))
 
-		# EF.IMPI - IMS private user identity
-		try:
-			if isim_card.file_exists(EF_ISIM_ADF_map['IMPI']):
-				(res, sw) = isim_card.read_impi()
-				if sw == '9000':
-					print("IMS private user identity: %s" % (len(res) and res or 'Not available',))
-				else:
-					print("IMS private user identity: Can't read, response code = %s" % (sw,))
-		except Exception as e:
-			print("IMS private user identity: Can't read file -- " + str(e))
+        # EF.IMPI - IMS private user identity
+        try:
+            if isim_card.file_exists(EF_ISIM_ADF_map['IMPI']):
+                (res, sw) = isim_card.read_impi()
+                if sw == '9000':
+                    print("IMS private user identity: %s" %
+                          (len(res) and res or 'Not available',))
+                else:
+                    print(
+                        "IMS private user identity: Can't read, response code = %s" % (sw,))
+        except Exception as e:
+            print("IMS private user identity: Can't read file -- " + str(e))
 
-		# EF.IMPU - IMS public user identity
-		try:
-			if isim_card.file_exists(EF_ISIM_ADF_map['IMPU']):
-				res = isim_card.read_impu()
-				print("IMS public user identity:\n%s" % (len(res) and res or '\tNot available\n',))
-		except Exception as e:
-			print("IMS public user identity: Can't read file -- " + str(e))
+        # EF.IMPU - IMS public user identity
+        try:
+            if isim_card.file_exists(EF_ISIM_ADF_map['IMPU']):
+                res = isim_card.read_impu()
+                print("IMS public user identity:\n%s" %
+                      (len(res) and res or '\tNot available\n',))
+        except Exception as e:
+            print("IMS public user identity: Can't read file -- " + str(e))
 
-		# EF.UICCIARI - UICC IARI
-		try:
-			if isim_card.file_exists(EF_ISIM_ADF_map['UICCIARI']):
-				res = isim_card.read_iari()
-				print("UICC IARI:\n%s" % (len(res) and res or '\tNot available\n',))
-		except Exception as e:
-			print("UICC IARI: Can't read file -- " + str(e))
+        # EF.UICCIARI - UICC IARI
+        try:
+            if isim_card.file_exists(EF_ISIM_ADF_map['UICCIARI']):
+                res = isim_card.read_iari()
+                print("UICC IARI:\n%s" %
+                      (len(res) and res or '\tNot available\n',))
+        except Exception as e:
+            print("UICC IARI: Can't read file -- " + str(e))
 
-		# EF.IST
-		(res, sw) = card.read_binary('6f07')
-		if sw == '9000':
-			print("ISIM Service Table: %s" % res)
-			# Print those which are available
-			print("%s" % dec_st(res, table="isim"))
-		else:
-			print("ISIM Service Table: Can't read, response code = %s" % (sw,))
+        # EF.IST
+        (res, sw) = card.read_binary('6f07')
+        if sw == '9000':
+            print("ISIM Service Table: %s" % res)
+            # Print those which are available
+            print("%s" % dec_st(res, table="isim"))
+        else:
+            print("ISIM Service Table: Can't read, response code = %s" % (sw,))
 
-	# Done for this card and maybe for everything ?
-	print("Done !\n")
+    # Done for this card and maybe for everything ?
+    print("Done !\n")