I have a large file with hex data inside listed as such “0A 04 64 72 BD 03…” My goal is to search for a specific string in the file “BA 1B 65 01” in example, once the string has been found then it copies the next 20 bytes followed after the search index and appends it to a new
Tag: hex
Can f-strings auto-pad to [the next] even number of digits on output?
Based on this answer (among others) it seems like f-strings is [one of] the preferred ways to convert to hexadecimal representation. While one can specify an explicit target length, up to which to pad with leading zeroes, given a goal of an output with an even number of digits, and inputs with an arbitrary # …
Hexadecimal to ASCII string in Pandas
I have this pandas datafreme As you can see it’s in Hex and I need to convert it to ASCII character. Hence, I need it to look like this I can do this in plain python, but I can’t do it in Pandas. Aný help is very much appreciated Answer Use lambda function or lsit comprehension: Another idea:
Convert strings with an unknown number of hex strings embedded in them to strings using regex
So I have a list of strings (content from Snort rules), and I am trying to convert the hex portions of them to UTF-8/ASCII, so I can send the content over netcat. The method I have now works fine for strings with single hex characters (i.e. 3A), but breaks when there’s a series of hex characters (i.e. 3…
How to slice hex data?
I have and Hex data in which there are three data present on which I can separate the information contain in the hex data: ID (2 bytes) length of the packet(2 bytes) information from the length of the packet, we come to know how long is the data in this hex data for example hex data = 0001001447364B5F48312E30…
How to convert byte to hex?
I am needing to send some data over serial but before I send, I need to calculate the checksum using modulo 256. I can work out the checksum and display it as a hex value (in this case the checksum is 0xb3) but it displays it as 0xb3 but I need it to be xb3 as I am sending other
How to convert a string to bytes with hexadecimal representation in Python?
I am a very beginner at Python. I have a string that is “TEST00000001” and its length is 12. I want to convert this string to a byte with a hexadecimal representation like this b’x54x45x53x54x30x30x30x30x3030x30x31′. As you can see, the length of the two objects has not changed. So far…
How to decode and visualize DICOM curve data in Python 3?
I am trying to visualize a DICOM file with Python 3 and pyDicom which should contain a black 100×100 image with some curves drawn in it. The pixel data is extracted from header (7fe0,0010) and when printed shows b’x00x00x00…’. This I can easily convert to a 100×100 numpy array. How…
Random 32 hexadecimal digits in Python
I am trying to find a great way to produce a 32 digit hex sequence that is random and gets its randomness from a Big Number like 10*78. For Python code I also found this: This produces a 64 digit hex string, BUT sometimes the result is 63 or even 61 characters and I’m not sure why? I need it