netports 0.12.1

Python tools for managing ranges of VLANs, TCP/UDP ports, IP protocols, Interfaces

netports

Python tools for managing ranges of VLANs, TCP/UDP ports, IP protocols, Interfaces Recommended for scripting in telecommunications networks.

Requirements

Python >=3.8

Installation

Install the package from pypi.org release

pip install netports

or install the package from github.com release

pip install https://github.com/vladimirs-git/netports/archive/refs/tags/0.12.1.tar.gz

or install the package from github.com repository

pip install git+https://github.com/vladimirs-git/netports@0.12.1

TCP/UDP ports

check_port()

check_port(port, strict) Check TCP/UDP port in the range 1 to 65535.

Parameter	Type	Description
port	int	The TCP/UDP port that needs to be checked.
strict	bool	True - raise NetportsValueError if the port is invalid, False - return False if the port is invalid. Default is False.

Return

bool True - If the port is in the valid range of 1 to 65535, False - otherwise.

Raises

TypeError If the port is not integer. NetportsValueError If strict=True and the port is outside the valid range.

check_port()

check_ports(ports, strict) heck TCP/UDP ports in the range 1 to 65535.

Parameter	Type	Description
ports	List[int]	The TCP/UDP ports that needs to be checked
strict	bool	True - raise NetportsValueError if any in the ports is invalid, False - return False if the port is invalid. Default is False.

Return

bool True - if all ports is in the valid range of 1 to 65535, False - otherwise.

Raises

TypeError If any in the ports is not integer. NetportsValueError If strict=True and any in the ports is outside the valid range.

itcp()

itcp(items, verbose, all) Integer TCP/UDP Ports. Sorting TCP/UDP ports and removing duplicates

Parameter	Type	Description
items	str, List[int], List[str]	Range of TCP/UDP ports, can be unsorted and with duplicates
verbose	bool	True - all ports in verbose mode: [1, 2, …, 65535], False - all ports in brief mode: [-1], to save RAM (default)
all	bool	True - Returns all TCP/UDP ports: [1, 2, …, 65535], or [-1] for verbose=False

Return

List[int] of unique sorted TCP/UDP ports

Raises

NetportsValueError if TCP/UDP ports are outside valid range 1…65535

stcp()

stcp(items, verbose, all) String TCP/UDP ports. Sorting TCP/UDP ports and removing duplicates

Parameter	Type	Description
items	str, List[int], List[str]	Range of TCP/UDP ports, can be unsorted and with duplicates
verbose	bool	True - all ports in verbose mode: [1, 2, …, 65535], False - all ports in brief mode: [-1], to save RAM (default)
all	bool	True - Returns all TCP/UDP ports: “1-65535”

Return

str of unique sorted TCP/UDP ports

Raises

NetportsValueError if TCP/UDP ports are outside valid range 1…65535

Examples

./examples/tcp_udp.py

VLAN IDs

ivlan()

ivlan(items, verbose, all, splitter, range_splitter, platform) Sorting integer VLAN IDs and removing duplicates

Parameter	Type	Description
items	str, List[int], List[str]	Range of VLANs, can be unsorted and with duplicates
verbose	bool	True - all VLAN IDs in verbose mode: [1, 2, …, 65535], False - all VLAN IDs in brief mode: [-1], to save RAM (default)
all	bool	True - Returns all VLAN IDs: [1, 2, …, 4094], or [-1] for verbose=False
splitter	str	Separator character between items, by default “,”
range_splitter	str	Separator between min and max numbers in range, by default “-”
platform	str	Set splitter and range_splitter to platform specific values. Defined: “cisco” (Cisco IOS), “hpe” (Hewlett Packard Enterprise).

Return

List[int] of unique sorted VLANs

Raises

NetportsValueError if VLANs are outside valid range 1…4094

svlan()

svlan(items, verbose, all, splitter, range_splitter, platform) Sorting string VLANs and removing duplicates

Parameter	Type	Description
items	str, List[int], List[str]	Range of VLANs, can be unsorted and with duplicates
verbose	bool	True - all VLAN IDs in verbose mode: [1, 2, …, 65535], False - all VLAN IDs in brief mode: [-1], to save RAM (default)
all	bool	True - Returns all VLAN IDs: “1-4094”
splitter	str	Separator character between items, by default “,”
range_splitter	str	Separator between min and max numbers in range, by default “-”
platform	str	Set splitter and range_splitter to platform specific values. Defined: “cisco” (Cisco IOS), “hpe” (Hewlett Packard Enterprise).

Return

str of unique sorted VLANs

Raises

NetportsValueError if VLANs are outside valid range 1…4094

Examples

./examples/vlan.py

IP protocols

IP_NAMES, IP_NUMBERS

Dictionary with known IP protocol names and IDs listed in https://en.wikipedia.org/wiki/List_of_IP_protocol_numbers

iip()

iip(items, verbose, all, strict) Sorting IP protocol numbers and removing duplicates

Parameter	Type	Description
items	str, List[int], List[str]	Range of IP protocol numbers, can be unsorted and with duplicates, “ip” - Return all IP protocol numbers: [0, 1, …, 255]
verbose	bool	True - all protocols in verbose mode: [0, 1, …, 255], False - all protocols in brief mode: [-1], to save RAM (default)
strict	bool	True - Raises NetportsValueError, if the protocol is unknown (default), False - Skips unknown protocols
all	bool	True - Return all IP protocol numbers: [0, 1, …, 255]

Return

List[int] of unique sorted IP protocol numbers

Raises

NetportsValueError if IP protocol numbers are outside valid range 0…255

sip()

sip(items, verbose, all) Soring string IP protocol numbers and removing duplicates

Parameter	Type	Description
items	str, List[int], List[str]	Range of IP protocol numbers, can be unsorted and with duplicates. “ip” - mean all numbers in range 0…255.
verbose	bool	True - all protocols in verbose mode: [0, 1, …, 255], False - all protocols in brief mode: [-1], to save RAM (default)
strict	bool	True - Raises NetportsValueError, if the protocol is unknown (default), False - Skips unknown protocols
all	bool	True - Return all IP protocol numbers: “0-255”

Return

str of unique sorted IP protocol numbers

Raises

NetportsValueError if IP protocol numbers are outside valid range 0…255

ip_pairs()

ip_pairs(items, strict) Splits items to IP protocol Number, Name and undefined-invalid protocols

Parameter	Type	Description
items	str, List[int], List[str]	Range of IP protocol names and numbers, can be unsorted and with duplicates
verbose	bool	True - all protocols in verbose mode: [0, 1, …, 255], False - all protocols in brief mode: [-1], to save RAM (default)

Return

List[Tuple[int, str]] Pairs of IP protocol number and name,

List[str] Undefined protocol names and invalid numbers

Examples

./examples/ip.py

Objects

Range()

Range(items, splitter, range_splitter, strict) An object that represents ports range as str and as List[int] Object implements most of the set and list methods that handle the Range.numbers attribute.

Parameter	Type	Description
items	str, List[int]	Range of numbers. Numbers can be unsorted and duplicated.
splitter	str	Separator character between items, by default “,”
range_splitter	str	Separator between min and max numbers in range, by default “-”
strict	bool	True - Raise NetportsValueError, if in items is invalid item. False - Make Range without invalid items. By default True.

Attributes demonstration

Range operators

Range object implements:

• Arithmetic operators: +, -

• Reference to numbers in range by index

Operator	Return	Description
Range(“1,4”) + Range(“3,5”)	Range(“1,3-5”)	Add two objects
Range(“1-5”) - Range(“2”)	Range(“1,3-5”)	Subtract two objects
Range(“1,3-5”)[1]	3	Get number by index
Range(“1,3-5”)[1:3]	[3, 4]	Get numbers by slice

Range methods

Range object implements most of set and list methods.

Method	Description
add(other)	Adds other Range object to self
append(number)	Appends number to self
clear()	Removes all numbers from self
copy()	Returns a copy of self Range object
difference(other)	Returns the Range object of the difference between self and other Range
difference_update(other)	Removes other Range from self
discard(number)	Removes the specified number from self Range
extend(numbers)	Adds List[int] numbers to self
index(number)	Returns index of number, raises ValueError if the number is not present in range
intersection(other)	Returns Range which is the intersection of self and other Range
intersection_update(other)	Removes numbers of other Range in self, that are not present in other
isdisjoint(other)	Returns whether self numbers and other Range numbers have intersection or not
issubset(other)	Returns whether other Range numbers contains self numbers or not
issuperset(other)	Returns whether self Range numbers contains other Range numbers set or not
pop()	Removes and returns last number in Range, raises IndexError if list is empty or index is out of range
remove(number)	Removes the specified number from self Range, raises ValueError if the numbers is not present
symmetric_difference(other)	Returns Range object with the symmetric differences of self and other Range
symmetric_difference_update(other)	Inserts the symmetric differences from self Range and other Range
update(other)	Returns Range of the union of self Range and other Range

Examples

• Attributes demonstration

• Sorts numbers and removes duplicates

• Range with custom splitters

./examples/range.py

Numbers

parse_range()

parse_range(line, splitter, range_splitter) Parses range from line. Removes white spaces considering splitters. Sort numbers and removes duplicates.

Parameter	Type	Description
line	str	Range of numbers, can be unsorted and with duplicates
splitter	str	Separator character between items, by default “,”
range_splitter	str	Separator between min and max numbers in range, by default “-”

Return

Range object

inumbers()

inumbers(items, splitter, range_splitter) Sort integer numbers and removes duplicates

Parameter	Type	Description
items	str, List[int], List[str]	Range of numbers, can be unsorted and with duplicates
splitter	str	Separator character between items, by default “,”
range_splitter	str	Separator between min and max numbers in range, by default “-”

Return

List[int] of unique sorted numbers

snumbers()

snumbers(items, splitter, range_splitter) Sort string numbers and removes duplicates

Parameter	Type	Description
items	str, List[int], List[str]	Range of numbers, can be unsorted and with duplicates
splitter	str	Separator character between items, by default “,”
range_splitter	str	Separator between min and max numbers in range, by default “-”

Return

str of unique sorted numbers

Examples

• Sorts numbers and removes duplicates

• Range with custom splitter and range_splitter

• Converts unsorted range to sorted List[int] without duplicates

• Converts unsorted range to List[int] with custom splitters

• Converts unsorted range to sorted str without duplicates

• Converts unsorted range to str with custom splitters

./examples/numbers.py

Interfaces

intfrange()

intfrange(items, fmt) Convert interfaces names to shorted range notation

Parameter	Type	Description
items	List[str]	List of interfaces
fmt	str	Format option: “long” - Long names: [“interface Ethernet1/1-3”], “short” - Short names: [“Eth1/1/1-3”]

Return

List[str] Interface ranges

long_to_short()

long_to_short(device_type, key_lower, value_lower) Returns Interfaces map long-to-short, device_type specific

Parameter	Type	Description
device_type	str	Netmiko device type, increase priority of device_type specific keys. “”, “cisco_asr”, “cisco_ios”, “cisco_nxos”, “hp_comware”
key_lower	bool	True - keys lower-case, False - keys upper-case
value_lower	bool	True - values lower-case, False - values upper-case

Return

Dict[str, str] Interfaces map

long_to_long()

long_to_long(device_type, key_lower, value_lower) Returns Interfaces map long-to-long, device_type specific

Parameter	Type	Description
device_type	str	Netmiko device type, increase priority of device_type specific keys. “”, “cisco_asr”, “cisco_ios”, “cisco_nxos”, “hp_comware”
key_lower	bool	True - keys lower-case, False - keys upper-case
value_lower	bool	True - values lower-case, False - values upper-case

Return

Dict[str, str] Interfaces map

short_to_long()

short_to_long(device_type, key_lower, value_lower) Returns Interfaces map short-to-long, device_type specific

Parameter	Type	Description
device_type	str	Netmiko device type, increase priority of device_type specific keys. “”, “cisco_asr”, “cisco_ios”, “cisco_nxos”, “hp_comware”
key_lower	bool	True - keys lower-case, False - keys upper-case
value_lower	bool	True - values lower-case, False - values upper-case

Return

Dict[str, str] Interfaces map

short_to_short()

short_to_short(device_type, key_lower, value_lower) Returns Interfaces map short-to-short, device_type specific

Parameter	Type	Description
device_type	str	Netmiko device type, increase priority of device_type specific keys. “”, “cisco_asr”, “cisco_ios”, “cisco_nxos”, “hp_comware”
key_lower	bool	True - keys lower-case, False - keys upper-case
value_lower	bool	True - values lower-case, False - values upper-case

Return

Dict[str, str] Interfaces map

Intf()

Intf(line, device_type, splitter) An object of interface name, that can contain up to 4 indexes. Sorts the interfaces by indexes (not by alphabetic).

Parameter	Type	Description
line	str	Interface name that can contain up to 4 indexes
device_type	str	Netmiko device_type (default “”)
splitter	str	Separator of characters between indexes (default “,./:”)

Attributes

Attributes	Type	Description
delimiters		Interface all delimiters
id0	str	Interface name. Line without IDs
id1	int	Interface 1st ID
id2	int	Interface 2nd ID
id3	int	Interface 3rd ID
id4	int	Interface 4th ID
ids		Interface all IDs
line	str	Interface line
name	str	Interface name with IDs
splitter	str	Separator of characters between indexes
device_type	str	Netmiko device_type

last_idx()

last_idx() Index of last ID in interface line

all_names()

all_names() All variants of names: long, short, upper-case, lover-case. Device type specific

name_full()

name_full() Interface long name with IDs and with interface keyword

name_long()

name_long() Interface long name with IDs and without interface keyword

name_short()

name_short(replace) Interface short name with IDs, Device type specific

Parameter	Type	Description
replace	List[Tuple[str, str]]	Replace the default short name with the first one that matches in the list of the ‘replace’ argument.

Return

str Interface short name.

part_after()

part_after(idx, splitter) Interface part after interested ID

Parameter	Type	Description
idx	int	Interface index
splitter	bool	True - Include splitter from edge, False - Skip splitter from edge

Return

str Part of the interface name after specified interface index

part_before()

part_before(idx, splitter) Interface part before interested ID

Parameter	Type	Description
idx	int	Interface index
splitter	bool	True - Include splitter from edge, False - Skip splitter from edge

Return

str Part of the interface name before specified interface index

Examples

• Attributes demonstration

• Interface with custom splitter between indexes. Splitter is ignored when comparing

• Sorting by indexes

• Grouping interfaces by 3rd index

./examples/intfs.py

SwVersion()

SwVersion(text) Parse the given version string and return SwVersion object who can compare (>, >=, <, <=) software versions of network devices: Cisco, FortiGate, HP, etc.

import re
from netports import SwVersion

text = "Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.2(4)E10, ..."
text = re.search(r"Version (\S+),", text)[1]

version1 = SwVersion(text)  # 15.2(4)E10
version2 = SwVersion("15.2(4)E11")

assert version1 < version2
assert version1 <= version2
assert not version1 > version2
assert not version1 >= version2
print(version1)  # 15.2(4)e10
print(version2)  # 15.2(4)e11