Python nmap program was not found in path error even nmap installed and nmap.exe is in the path

Question

For some reason I can't use nmap on python. I have python-nmap installed as a library. Whenever I try to use PortScanner(), I get path error but I have nmap installed on my computer and it is even in path.

import nmap

nm = nmap.PortScanner()

print(nm)

The error is

raise PortScannerError(
nmap.nmap.PortScannerError: 'nmap program was not found in path. PATH is : C:\\Program Files (x86)\\Common Files\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files\\Microsoft SQL Server\\130\\Tools\\Binn\\;C:\\nodejs\\;C:\\Program Files\\dotnet\\;C:\\Program Files\\Microsoft SQL Server\\Client SDK\\ODBC\\170\\Tools\\Binn\\;C:\\Program Files (x86)\\dotnet\\;C:\\Users\\Anti\\AppData\\Local\\Programs\\Python\\Python38\\Scripts\\;C:\\Users\\Anti\\AppData\\Local\\Programs\\Python\\Python38\\;C:\\Program Files\\Java\\jdk-13.0.2\\bin;C:\\Users\\Anti\\Desktop\\Selenium;C:\\Users\\Anti\\Desktop\\C++;C:\\ffmpeg\\bin;;C:\\Users\\Anti\\AppData\\Local\\Programs\\Microsoft VS Code\\bin;C:\\MinGW\\bin;C:\\Users\\Anti\\AppData\\Roaming\\npm;C:\\Users\\Anti\\.dotnet\\tools;C:\\Program Files (x86)\\Nmap'

My nmap files are in the path as you can see.

C:\\Program Files (x86)\\Nmap

I tried to reinstall nmap and add in path again, nothing changed. I can use the nmap command directly on cmd without any problems. By the way, I don't use virtualenv. How can I solve this?

score 4 · Accepted Answer · answered Dec 01 '21 at 11:40

4

I know this is old thread. But if someone is searching for similar answer.
What @sushanth answered is correct. It just has to be list:

nmap_path = [r"C:\Program Files (x86)\Nmap\nmap.exe",]
scanner = nmap.PortScanner(nmap_search_path=nmap_path)

answered Dec 01 '21 at 11:40

Jasec

56
2

It took me so long to find this thread. This is the proper answer – Cody MacLeod Mar 09 '22 at 20:24

score 1 · Answer 2 · answered Jun 06 '20 at 13:30

1

You need to add path for nmap.exe while initializing PortScanner

import nmap

nmap_path = r"C:\Program Files (x86)\Nmap\nmap.exe"
nmap.PortScanner(nmap_search_path = nmap_path)

answered Jun 06 '20 at 13:30

sushanth

8,275
3
17
28

Unfortunately, I still have the same issue – Anhedonia Jun 06 '20 at 13:41
Can you open cmd prompt & run this command ``"C:\Program Files (x86)\Nmap\nmap.exe"`` to see if nmap exists in that path or not ? – sushanth Jun 06 '20 at 13:43
Yes, nmap exists in the path. I can run nmap when I type that – Anhedonia Jun 06 '20 at 13:49
``pip uninstall nmap``, ``pip install python-nmap`` – sushanth Jun 06 '20 at 14:15

Mario DeMarco · Answer 3 · 2022-08-06T08:00:57.653

this article helped a lot, because I had the same issue. But there are still some things to be respected:

Ensure that nmap_path is a list or a tuple, not a single str.
when defining the path, it needs to be noted with a leading dot "."

import nmap # networ scanner "nmap" needs also the nmap tool from https://nmap.org/download

# nmap ping scan
#s_path=(r'C:\Program Files (x86)\Nmap\nmap.exe',r'\Nmap\nmap.exe',r'\nmap-7.92\nmap.exe')
s_path=[r'\Nmap\nmap.exe',r'.\nmap-7.92\nmap.exe']
print(type(s_path))
nm = nmap.PortScanner(nmap_search_path = s_path) # alternative way with seld defined path
#nm = nmap.PortScanner() #standard way, if Nmap tool is installed correct from https://nmap.org/download
nm.scan(hosts="192.168.178.0/24",arguments="-sn")
ip_list=nm.all_hosts() #returns a list with all available IPs
print(ip_list)

Python nmap program was not found in path error even nmap installed and nmap.exe is in the path

3 Answers3