PyHora 3.4.0

Python package containing almost all the features described in the book

Vedic Astrology - An Integrated Approach - by PVR Narasimha Rao

Observational Indian lunisolar calendar, horoscope and matching using the Swiss ephemeris (Hindu Drig-ganita Panchanga).

Features

See - package_structure.md for package structure

Changes since V3.3.0

** horoscope/dhasa folder restructured with dhasas moved to graha/raasi/annual folders under it.**
const.py, horoscope/chart/charts.py, horoscope/chart/dhasa/varnada.py horoscope/main.py - Varnada lagna added for all charts. ** Experimental functions to calculate varnada using BV Raman, Santhanam and Sanjay Rath methods ***
horoscope/dhasa/graha/vimsottari.py - sidereal year is used instead of savana year. Added option use_rasi_bhukthi_variation setting True will generate Rasi-Bhukthi Vimsottari Dhasa.
For all applicable dhasa, added option use_tribhagi_variation to generate tribhagi variation.
Added buddhi_gathi, karana_chathuraaseethi_sama, tithi_ashtottari, tith_yogini, kaala and yoga_vimsottari graha dhasas. Also added chakra rasi dhasa.4
horoscope/dhasa/varnada.py - Error Fixed. Passed divisional_chart_factor argument correctly.
horoscope/charts/sphuta.py - Added yogi and avayogi sphuta
tests/pvr_tests.py - Added tests for yogi and avayogi sphuta and all added dhasas.
panchanga/drik.py - Added vighati and pranapada lagna. Updated yogam and karanam functions to return start and end times as well.
ui/horo_chart_tabs.py - Updated to cover above changes

Changes since V3.2.0

horoscope/main.py- and panchanga/drik.py - Added fraction left for tithi/nakshathra. ** Added drik.planets_in_retrograde function. This calculates planet retrogression correctly. Do not use planets_in_retrograde from charts module **
panchanga/drik.py - Added functions to calculate conjunctions of planets, or in general separation by angles in multiples of 30°. Added functions to calculate Planet Entry/Transit dates. Added function _nisheka_time to calculate conception date/time. ** This is still not accurate as compared to JHora. I could not get exact algorithm to calculate this yet. I am still experimenting this **
ui/horo_chart_tabs.py - added UI to be able to select planetary conjunction calculation or planet transit calculation. Minor change: Added resource strings for language combo and chart type combo.
ui/vakra_gathi_plot.py - ** New UI to show retrograde path of planets as seen from earth. **
ui/vratha_finder.py: New UI to find vrathas such as pradosham, sankranti, amavasya, pournami', ekadhashi, sashti, sankatahara_chathurthi, vinayaka_chathurthi, shivarathri, chandra_dharshan, moondraam_pirai, srartha, tithi, nakshatra, ashtaka, manvaadhi, yugadhi, mahalaya_paksha.
tests/pvr_tests.py - added tests for conjunction and transit feature to compare against JHora.

Changes since V3.1.8

panchanga/vratha.py - added tithi_pravesha function to find dates/times of tithi/lunar_month as that of given birth_date, birth_time and birth_place - found between the given start and end dates.
ui/horos_chart_tabs.py - added tithi_pravesha ComboBox. One can choose either Annual Pravesha (solar entry for current year) or Tithi Pravesha (lunar month/tithi entry for current year).

Changes since V3.0.5

Data: Added: south indian marriage compatibility csv database file, Marriage_Compatibility-V4.0.1.xlsx
horoscope/chart/charts.py - benefics_and_malefics function to calculate benefics/malefics based on tithi and planet associations.
horoscope/chart/dosha.py - new module to calculate various doshas: kala sarpa, manglik/sevvay, pitru, guru chandala, ganda moola, kalathra, ghata and shrapit.
horoscope/chart/house.py - added functions aspected_planets_of_the_planet, aspected_rasis_of_the_planet, aspected_houses_of_the_planet, planets_aspecting_the_planet, associations_of_the_planet and baadhakas_of_raasi
horoscope/chart/raja_yoga.py - minor changes: getting benefics/malefics from charts.py instead of const.py
horoscope/chart/sphuta.py - sphuta functions return constellation and longitude within constellation.
horoscope/chart/strength.py - minor changes: getting benefics/malefics from charts.py instead of const.py
horoscope/match/compatibility.py - Major change: Introduce South Indian (பத்து பொருத்தம்) in addition to existing Ashta Koota. Also automatically checks if dina/gana/yoni/rasi and rajju are matching - depending on the varna of the girl rasi.
horoscope/transit/saham.py - renamed _is_C_between_B_to_A
horoscope/prediction.py - provides general predictions based on lagna raasi, planets in houses and lords in houses.
lang/ - Added language strings for dosha, prediction. ** Please note that translations are based on google translate and hence may not be accurate - for example the word native is translated as "பூர்வீகம்". **
panchanga/drik.py - _rise_flags changed to swe.BIT_HINDU_RISING. Added new functions next_solar_eclipse(jd,place) and next_lunar_eclipse(jd,place) to calculate next solar/lunar eclipse dates.
ui/ - added changes to support south indian compatibility
const.py - added constants related to dosha and compatibility
utils.py - added array lists to support dosha and compatibility.

** PLEASE NOTE OTHER README.MD FILES INSIDE PACKAGE ARE NOT UPDATED YET **

Major Changes since V2.6.9

Divisional chart calculations were incorrect in V2.6.9 or before. They have been fixed now
Several new dhasa have been added. (14 Graha Dhasa, 19 Rasi Dhasa and 3 Annual Dhasa)
Graha / Nakshatra Dhasas:
- vimsottari, ashtottari, yogini, shodasottari, dwadasottari, dwisatpathi, panchottari, satabdika, chaturaaseeti sama, shashtisama, shattrimsa sama, naisargika, tara, karaka
Raasi Dhasas:
- narayana, kendraadhi_rasi, sudasa, drig, nirayana, shoola, kendraadhi karaka, chara, lagnamsaka, padhanadhamsa, mandooka, sthira, tara lagna, brahma, varnada, yogardha, navamsa, paryaaya, trikona, kalachakra
Annual Dhasas:
- patyayini, varsha vimsottari, varsha narayana
Stronger Planet and Rasi are now calculated using planet positions and longitudes (in V2.6.9 or before it was only based on planet houses)

Computation of the five essentials of the panchangam:

Tithi
Nakshatra
Yoga
Karana
Vaara

Not just the values, but also the end times of tithis and nakshatras are computed. The only factor limiting the accuracy of the program output is the uncertainity in your input values (latitude, longitude).

Also includes computation of sunrise, sunset, moonrise and moonset.

Also Included :

Instantaneous planetary positions, including Lagna (Ascendant)
Navamsa positions
Choghadiya/Gauri panchanga
Vimsottari Dasha-Bhukti
Rahu Kala, Yamaganda Kala, Gulika Kala
Abhijit muhurta and Durmuhurtams
Marriage compatibility details (0.9.6)
Special Lagnas and Upagrahas added to charts (1.0.1)
Ashtaka Varga charts and Shodhya pinda(0.9.8)
Print the UI as PDF (using img2pdf and pillow to combine two tabs into one page)

Available in English, Tamil and Telugu, Hindi(0.9.7) and Kannada (0.9.8)

You can add your own language by creating list_values_xx.txt and msg_strings_xx.txt by copying the _en files and replacing with appropriate native language strings.

Do not forget to add the new language into the available_languages in horo_chart.py and/or horo_chart_tabs.py

NOTE: All timings are end timings. Timings displayed higher than 24:00 denote hours past midnight because the Hindu day (tithi) starts and ends with sunrise. If applicable, daylight savings (DST) are accounted for automatically based on the date and place entered in the textboxes.

Requirements

Python interface to Swiss ephemeris.

	pip install pyswisseph	# OR apt-get install pyswisseph

The core of the library (panchanga.py and horoscope.py) can be imported into other code or used from the command line.

There are three UI files namely: horo_chart.py, horo_chart_tabs.py and match_ui.py. horo_chart.py - provides a one page panchanga, rasi and navamsa charts horo_chart_tabs.py- provides multi-tab/page panchanga, divisional charts and marriage compatibility match_ui.py - provides just marriage compatibility between boy and girl based on their birh stars.

In order to just run the GUI, you also need pyqt6:

    pip install pyqt6

Using the GUI

Enter Name, and Place with country name (e.g. Chennai, IN) If you get an error, enter latitude, longitude and time zone manually. If you want to be precise, enter the lat/long of the exact place (e.g. hospital) You can use google to find the latitude, longitude, time zone of the place

Type the Date in YYY,MM,DD format in the 'Date' field. Negative value for YYYY are interpolated as proleptic Gregorian calendar (Before Christ BC).

Enter Time of birth, choose chart style, ayanamsa mode, language of display

Click Show Chart to display the birth (Raasi and Navamsam) charts

Click Show PDF to save the screen as a PDF file

Using the Code / command line

	import horo_chart, panchanga, horoscope
    App = QApplication(sys.argv)
    chart_type = 'North'
    chart = horo_chart.ChartWindow(chart_type=chart_type)
    chart.language('Tamil')
    chart.name('Krishna')
    chart.place('Mathura,IN')
    chart.date_of_birth('-3229,6,17')
    chart.time_of_birth('23:59:00')
    chart.time_zone('5.5')
    chart.chart_type(chart_type)
    chart.compute_horoscope()
    chart.minimum_compatibility_score(20.0)
    chart.mahendra_porutham(False)
    chart.vedha_porutham(False)
    chart.rajju_porutham(False)
    chart.sthree_dheerga_porutham(False)
    chart.show()
    chart.save_as_pdf('delme.pdf')

Accuracy

The program is as accurate as the Swiss Ephemeris installed on your system. So generally it is accurate for years 13000 BCE to 16800 CE. The computational speed stays the same no matter which date you enter. Required swiss ephimeres files are also /ephe/ folder of this repository. Overall size of these files is more than 100 MB. To reduce your application size, you can restrict the dates within a range and could remove those ephimeres files from the folder.

Personal Opinion:

When using BC dates (such as mahabharatha dates) it is advised to use SURYA_SIDHANTHA or SUNDAR_SS as ayanamsa styles, as ayanamsa values of every other ayanamsa types such as LAHIRI, KP etc are inaccurate. SUNDAR_SS is a sine curve forcing zero ayanamsa every 3200 years from -3101 BCE and 27 degrees as peak ayanamsa.

API Documents

API are in README.md of respective folders. HTML links are provided here below:

License

See LICENSE file.

naturalstupid/PyHora