Currently I'm getting data from some sensors with voltage(V) and current(C) values which is decoded into text as V040038038039C125067 to be stored in MYSQL DB table. The voltage contains 4 different voltage values combined while the current contains 2 different current values combined where each value represented by 3 digits in the format of Voltage xx.x C: Current xx.x. For example, the current value of C125067 is actually 12.5 and 06.7A respectively. I tried to use python slicing some and some simple math to achieve this by dividing the values by 10 e.g. C125067 = 125/10 = 12.5. While this works for integers with first non-zero values (e.g. 125), when I tried to perform the same for values such as 040 or 067, I get the SyntaxError: leading zeros in decimal integer literals are not permitted error. Are there any better ways to achieve the desired decoding output of xx.x or to insert a decimal point before the last digit etc? Thanks.
v1 = voltage[1:4]
v2 = voltage[4:7]
v3 = voltage[7:10]
v4 = voltage[10:13]
c1 = current[1:4]
c2 = current[4:7]
volt_1 = int(v1)/10
volt_2 = int(v2)/10
volt_3 = int(v3)/10
volt_4 = int(v4)/10
curr_1 = int(c1)/10
curr_2 = int(c2)/10
Which version of Python are you using? int should convert strings such as '040' just fine.
Python 3.9.13 | packaged by conda-forge | (main, May 27 2022, 16:56:21)
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IPython 8.4.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: int('040')
Out[1]: 40
In [2]:
Are you by any chance typing int(040) instead of int('040')? One is a decimal integer literal while the latter is a string.
Leading zeros are not allowed in Python?
Using python 3.9.13, your code works without problems.
voltage = "V040038038039C125067"
v1 = voltage[1:4]
v2 = voltage[4:7]
v3 = voltage[7:10]
v4 = voltage[10:13]
volt_1 = int(v1)/10
volt_2 = int(v2)/10
volt_3 = int(v3)/10
volt_4 = int(v4)/10
print(v1, v2, v3, v4, volt_1, volt_2, volt_3, volt_4)
# 040 038 038 039 4.0 3.8 3.8 3.9